aerospike

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README

Aerospike Go Client

Aerospike Client Go

An Aerospike library for Go.

This library is compatible with Go 1.7+ and supports the following operating systems: Linux, Mac OS X (Windows builds are possible, but untested)

Please refer to CHANGELOG.md if you encounter breaking changes.

Usage:

The following is a very simple example of CRUD operations in an Aerospike database.

package main

import (
  "fmt"

  . "github.com/aerospike/aerospike-client-go"
)

func panicOnError(err error) {
  if err != nil {
    panic(err)
  }
}

func main() {
  // define a client to connect to
  client, err := NewClient("127.0.0.1", 3000)
  panicOnError(err)

  key, err := NewKey("test", "aerospike", "key")
  panicOnError(err)

  // define some bins with data
  bins := BinMap{
    "bin1": 42,
    "bin2": "An elephant is a mouse with an operating system",
    "bin3": []interface{}{"Go", 2009},
  }

  // write the bins
  err = client.Put(nil, key, bins)
  panicOnError(err)

  // read it back!
  rec, err := client.Get(nil, key)
  panicOnError(err)

  fmt.Printf("%#v\n", *rec)

  // delete the key, and check if key exists
  existed, err := client.Delete(nil, key)
  panicOnError(err)
  fmt.Printf("Record existed before delete? %v\n", existed)
}

More examples illustrating the use of the API are located in the examples directory.

Details about the API are available in the docs directory.

Prerequisites

Go version v1.5+ is required.

To install the latest stable version of Go, visit http://golang.org/dl/

Aerospike Go client implements the wire protocol, and does not depend on the C client. It is goroutine friendly, and works asynchronously.

Supported operating systems:

  • Major Linux distributions (Ubuntu, Debian, Red Hat)
  • Mac OS X
  • Windows (untested)

Installation:

  1. Install Go 1.5+ and setup your environment as Documented here.
  2. Get the client in your GOPATH : go get github.com/aerospike/aerospike-client-go
  • To update the client library: go get -u github.com/aerospike/aerospike-client-go

Using gopkg.in is also supported: go get -u gopkg.in/aerospike/aerospike-client-go.v1

Some Hints:
  • To run a go program directly: go run <filename.go>
  • to build: go build -o <output> <filename.go>
  • example: go build -o benchmark tools/benchmark/benchmark.go

Performance Tweaking

We are bending all efforts to improve the client's performance. In our reference benchmarks, Go client performs almost as good as the C client.

To read about performance variables, please refer to docs/performance.md

Tests

This library is packaged with a number of tests. Tests require Ginkgo and Gomega library.

Before running the tests, you need to update the dependencies:

$ go get .

To run all the test cases with race detection:

$ ginkgo -r -race

Examples

A variety of example applications are provided in the examples directory.

Tools

A variety of clones of original tools are provided in the tools directory. They show how to use more advanced features of the library to reimplement the same functionality in a more concise way.

Benchmarks

Benchmark utility is provided in the tools/benchmark directory. See the tools/benchmark/README.md for details.

API Documentation

API documentation is available in the docs directory.

License

The Aerospike Go Client is made available under the terms of the Apache License, Version 2, as stated in the file LICENSE.

Individual files may be made available under their own specific license, all compatible with Apache License, Version 2. Please see individual files for details.

Documentation

Index

Examples

Constants

View Source 
const (
	// CONSISTENCY_ONE indicates only a single replica should be consulted in
	// the read operation.
	CONSISTENCY_ONE = iota

	// CONSISTENCY_ALL indicates that all replicas should be consulted in
	// the read operation.
	CONSISTENCY_ALL
)
View Source 
const (
	// UserAdmin allows to manages users and their roles.
	UserAdmin privilegeCode = "user-admin"

	// SysAdmin allows to manage indexes, user defined functions and server configuration.
	SysAdmin privilegeCode = "sys-admin"

	// DataAdmin allows to manage indicies and user defined functions.
	DataAdmin privilegeCode = "data-admin"

	// ReadWriteUDF allows read, write and UDF transactions with the database.
	ReadWriteUDF privilegeCode = "read-write-udf"

	// ReadWrite allows read and write transactions with the database.
	ReadWrite privilegeCode = "read-write"

	// Read allows read transactions with the database.
	Read privilegeCode = "read"
)

Pre-defined user roles.

View Source 
const (
	// TTLServerDefault will default to namespace configuration variable "default-ttl" on the server.
	TTLServerDefault = 0
	// TTLDontExpire will never expire for Aerospike 2 server versions >= 2.7.2 and Aerospike 3 server.
	TTLDontExpire = math.MaxUint32
	// TTLDontUpdate will not change the record's ttl when record is written. Supported by Aerospike server versions >= 3.10.1
	TTLDontUpdate = math.MaxUint32 - 1
)

Variables

View Source 
var MapOrder = struct {
	// Map is not ordered. This is the default.
	UNORDERED mapOrderType // 0

	// Order map by key.
	KEY_ORDERED mapOrderType // 1

	// Order map by key, then value.
	KEY_VALUE_ORDERED mapOrderType // 3
}{0, 1, 3}

Map storage order.

View Source 
var MapReturnType = struct {
	// Do not return a result.
	NONE mapReturnType

	// Return key index order.
	//
	// 0 = first key
	// N = Nth key
	// -1 = last key
	INDEX mapReturnType

	// Return reverse key order.
	//
	// 0 = last key
	// -1 = first key
	REVERSE_INDEX mapReturnType

	// Return value order.
	//
	// 0 = smallest value
	// N = Nth smallest value
	// -1 = largest value
	RANK mapReturnType

	// Return reserve value order.
	//
	// 0 = largest value
	// N = Nth largest value
	// -1 = smallest value
	REVERSE_RANK mapReturnType

	// Return count of items selected.
	COUNT mapReturnType

	// Return key for single key read and key list for range read.
	KEY mapReturnType

	// Return value for single key read and value list for range read.
	VALUE mapReturnType

	// Return key/value items. The possible return types are:
	//
	// map[interface{}]interface{} : Returned for unordered maps
	// []MapPair : Returned for range results where range order needs to be preserved.
	KEY_VALUE mapReturnType
}{
	0, 1, 2, 3, 4, 5, 6, 7, 8,
}

Map return type. Type of data to return when selecting or removing items from the map.

View Source 
var MapWriteMode = struct {
	// If the key already exists, the item will be overwritten.
	// If the key does not exist, a new item will be created.
	UPDATE *mapWriteMode

	// If the key already exists, the item will be overwritten.
	// If the key does not exist, the write will fail.
	UPDATE_ONLY *mapWriteMode

	// If the key already exists, the write will fail.
	// If the key does not exist, a new item will be created.
	CREATE_ONLY *mapWriteMode
}{
	&mapWriteMode{_CDT_MAP_PUT, _CDT_MAP_PUT_ITEMS},
	&mapWriteMode{_CDT_MAP_REPLACE, _CDT_MAP_REPLACE_ITEMS},
	&mapWriteMode{_CDT_MAP_ADD, _CDT_MAP_ADD_ITEMS},
}
View Source 
var (
	// MaxBufferSize protects against allocating massive memory blocks
	// for buffers. Tweak this number if you are returning a lot of
	// LDT elements in your queries.
	MaxBufferSize = 1024 * 1024 * 10 // 10 MB
)

Functions

func NewPredExpAnd added in v1.26.0 

func NewPredExpAnd(nexpr uint16) *predExpAnd

NewPredExpAnd creates an AND predicate. Argument describes the number of expressions.

func NewPredExpGeoJSONBin added in v1.26.0 

func NewPredExpGeoJSONBin(name string) *predExpBin

NewPredExpUnknownBin creates a Bin predicate expression which its type is GeoJSON.

func NewPredExpGeoJSONContains added in v1.26.0 

func NewPredExpGeoJSONContains() *predExpCompare

NewPredExpGeoJSONContains creates Region Contains predicate for GeoJSON values

func NewPredExpGeoJSONValue added in v1.26.0 

func NewPredExpGeoJSONValue(val string) *predExpGeoJSONValue

NewPredExpGeoJSONValue embeds a GeoJSON value in a predicate expression.

func NewPredExpGeoJSONVar added in v1.26.0 

func NewPredExpGeoJSONVar(name string) *predExpVar

NewPredExpGeoJSONVar creates GeoJSON variable used in list/map iterations.

func NewPredExpGeoJSONWithin added in v1.26.0 

func NewPredExpGeoJSONWithin() *predExpCompare

NewPredExpGeoJSONWithin creates Within Region predicate for GeoJSON values

func NewPredExpIntegerBin added in v1.26.0 

func NewPredExpIntegerBin(name string) *predExpBin

NewPredExpUnknownBin creates a Bin predicate expression which its type is integer.

func NewPredExpIntegerEqual added in v1.26.0 

func NewPredExpIntegerEqual() *predExpCompare

NewPredExpIntegerEqual creates Equal predicate for integer values

func NewPredExpIntegerGreater added in v1.26.0 

func NewPredExpIntegerGreater() *predExpCompare

NewPredExpIntegerGreater creates Greater Than predicate for integer values

func NewPredExpIntegerGreaterEq added in v1.26.0 

func NewPredExpIntegerGreaterEq() *predExpCompare

NewPredExpIntegerGreaterEq creates Greater Than Or Equal predicate for integer values

func NewPredExpIntegerLess added in v1.26.0 

func NewPredExpIntegerLess() *predExpCompare

NewPredExpIntegerLess creates Less Than predicate for integer values

func NewPredExpIntegerLessEq added in v1.26.0 

func NewPredExpIntegerLessEq() *predExpCompare

NewPredExpIntegerLessEq creates Less Than Or Equal predicate for integer values

func NewPredExpIntegerUnequal added in v1.26.0 

func NewPredExpIntegerUnequal() *predExpCompare

NewPredExpIntegerUnequal creates NotEqual predicate for integer values

func NewPredExpIntegerValue added in v1.26.0 

func NewPredExpIntegerValue(val int64) *predExpIntegerValue

NewPredExpIntegerValue embeds an int64 value in a predicate expression.

func NewPredExpIntegerVar added in v1.26.0 

func NewPredExpIntegerVar(name string) *predExpVar

NewPredExpIntegerVar creates 64 bit integer variable used in list/map iterations.

func NewPredExpListBin added in v1.26.0 

func NewPredExpListBin(name string) *predExpBin

NewPredExpUnknownBin creates a Bin predicate expression which its type is List.

func NewPredExpListIterateAnd added in v1.26.0 

func NewPredExpListIterateAnd(name string) *predExpIter

NewPredExpListIterateAnd creates an And iterator predicate for list items

func NewPredExpListIterateOr added in v1.26.0 

func NewPredExpListIterateOr(name string) *predExpIter

NewPredExpListIterateOr creates an Or iterator predicate for list items

func NewPredExpMapBin added in v1.26.0 

func NewPredExpMapBin(name string) *predExpBin

NewPredExpUnknownBin creates a Bin predicate expression which its type is Map.

func NewPredExpMapKeyIterateAnd added in v1.26.0 

func NewPredExpMapKeyIterateAnd(name string) *predExpIter

NewPredExpMapKeyIterateAnd creates an And iterator predicate on map keys

func NewPredExpMapKeyIterateOr added in v1.26.0 

func NewPredExpMapKeyIterateOr(name string) *predExpIter

NewPredExpMapKeyIterateOr creates an Or iterator predicate on map keys

func NewPredExpMapValIterateAnd added in v1.26.0 

func NewPredExpMapValIterateAnd(name string) *predExpIter

NewPredExpMapKeyIterateAnd creates an And iterator predicate on map values

func NewPredExpMapValIterateOr added in v1.26.0 

func NewPredExpMapValIterateOr(name string) *predExpIter

NewPredExpMapValIterateOr creates an Or iterator predicate on map values

func NewPredExpNot added in v1.26.0 

func NewPredExpNot() *predExpNot

NewPredExpNot creates a NOT predicate

func NewPredExpOr added in v1.26.0 

func NewPredExpOr(nexpr uint16) *predExpOr

NewPredExpOr creates an OR predicate. Argument describes the number of expressions.

func NewPredExpRecDeviceSize added in v1.26.0 

func NewPredExpRecDeviceSize() *predExpMD

NewPredExpRecDeviceSize creates record size on disk predicate

func NewPredExpRecDigestModulo added in v1.26.0 

func NewPredExpRecDigestModulo(mod int32) *predExpMDDigestModulo

NewPredExpRecDigestModulo creates a digest modulo record metadata value predicate expression. The digest modulo expression assumes the value of 4 bytes of the record's key digest modulo as its argument. This predicate is available in Aerospike server versions 3.12.1+

For example, the following sequence of predicate expressions selects records that have digest(key) % 3 == 1): stmt.SetPredExp( 

NewPredExpRecDigestModulo(3),
NewPredExpIntegerValue(1),
NewPredExpIntegerEqual(),

)

func NewPredExpRecLastUpdate added in v1.26.0 

func NewPredExpRecLastUpdate() *predExpMD

NewPredExpRecLastUpdate creates record last update predicate

func NewPredExpRecVoidTime added in v1.26.0 

func NewPredExpRecVoidTime() *predExpMD

NewPredExpRecVoidTime creates record expiration time predicate expressed in nanoseconds since 1970-01-01 epoch as 64 bit integer.

func NewPredExpStringBin added in v1.26.0 

func NewPredExpStringBin(name string) *predExpBin

NewPredExpUnknownBin creates a Bin predicate expression which its type is String.

func NewPredExpStringEqual added in v1.26.0 

func NewPredExpStringEqual() *predExpCompare

NewPredExpStringEqual creates Equal predicate for string values

func NewPredExpStringRegex added in v1.26.0 

func NewPredExpStringRegex(cflags uint32) *predExpStringRegex

NewPredExpStringRegex creates a Regex predicate

func NewPredExpStringUnequal added in v1.26.0 

func NewPredExpStringUnequal() *predExpCompare

NewPredExpStringUnequal creates Not Equal predicate for string values

func NewPredExpStringValue added in v1.26.0 

func NewPredExpStringValue(val string) *predExpStringValue

NewPredExpStringValue embeds a string value in a predicate expression.

func NewPredExpStringVar added in v1.26.0 

func NewPredExpStringVar(name string) *predExpVar

NewPredExpStringVar creates string variable used in list/map iterations.

func NewPredExpUnknownBin added in v1.26.0 

func NewPredExpUnknownBin(name string) *predExpBin

NewPredExpUnknownBin creates a Bin predicate expression which its type is not known.

func PackBool added in v1.23.0 

func PackBool(cmd BufferEx, val bool) (int, error)

Pack bool packs a bool value

func PackBytes added in v1.23.0 

func PackBytes(cmd BufferEx, b []byte) (int, error)

PackBytes backs a byte array

func PackFloat32 added in v1.23.0 

func PackFloat32(cmd BufferEx, val float32) (int, error)

PackFloat32 packs float32 value

func PackFloat64 added in v1.23.0 

func PackFloat64(cmd BufferEx, val float64) (int, error)

PackFloat64 packs float64 value

func PackInt64 added in v1.23.0 

func PackInt64(cmd BufferEx, val int64) (int, error)

PackInt64 packs an int64

func PackJson added in v1.23.0 

func PackJson(cmd BufferEx, theMap map[string]interface{}) (int, error)

PackJson packs json data

func PackList added in v1.23.0 

func PackList(cmd BufferEx, list ListIter) (int, error)

PackList packs any slice that implement the ListIter interface

func PackMap added in v1.23.0 

func PackMap(cmd BufferEx, theMap MapIter) (int, error)

PackMap packs any map that implements the MapIter interface

func PackNil added in v1.23.0 

func PackNil(cmd BufferEx) (int, error)

Pack nil packs a nil value

func PackString added in v1.23.0 

func PackString(cmd BufferEx, val string) (int, error)

PackString packs a string

func PackUInt64 added in v1.23.0 

func PackUInt64(cmd BufferEx, val uint64) (int, error)

PackUInt64 packs a uint64

func RequestInfo 

func RequestInfo(conn *Connection, names ...string) (map[string]string, error)

RequestInfo gets info values by name from the specified connection.

func RequestNodeInfo added in v1.0.1 

func RequestNodeInfo(node *Node, name ...string) (map[string]string, error)

RequestNodeInfo gets info values by name from the specified database server node.

func RequestNodeStats added in v1.0.1 

func RequestNodeStats(node *Node) (map[string]string, error)

RequestNodeStats returns statistics for the specified node as a map

func SetAerospikeTag added in v1.20.0 

func SetAerospikeTag(tag string)

SetAerospikeTag sets the bin tag to the specified tag. This will be useful for when a user wants to use the same tag name for two different concerns. For example, one will be able to use the same tag name for both json and aerospike bin name.

func SetCommandBufferPool added in v1.0.1 

func SetCommandBufferPool(poolSize, initBufSize, maxBufferSize int)

SetCommandBufferPool can be used to customize the command Buffer Pool parameters to calibrate the pool for different workloads This method is deprecated.

func SetLuaPath added in v1.10.0 

func SetLuaPath(lpath string)

SetLuaPath sets the Lua interpreter path to files This path is used to load UDFs for QueryAggregate command

Types

type AdminPolicy added in v1.3.0 

type AdminPolicy struct {

	// User administration command socket timeout in milliseconds.
	// Default is one second timeout.
	Timeout time.Duration
}

AdminPolicy contains attributes used for user administration commands.

func NewAdminPolicy added in v1.3.0 

func NewAdminPolicy() *AdminPolicy

NewAdminPolicy generates a new AdminPolicy with default values.

type AerospikeBlob 

type AerospikeBlob interface {
	// EncodeBlob returns a byte slice representing the encoding of the
	// receiver for transmission to a Decoder, usually of the same
	// concrete type.
	EncodeBlob() ([]byte, error)
}

type BasePolicy 

type BasePolicy struct {
	Policy

	// Priority of request relative to other transactions.
	// Currently, only used for scans.
	Priority Priority //= Priority.DEFAULT;

	// How replicas should be consulted in a read operation to provide the desired
	// consistency guarantee. Default to allowing one replica to be used in the
	// read operation.
	ConsistencyLevel ConsistencyLevel //= CONSISTENCY_ONE

	// Timeout specifies total transaction timeout.
	//
	// The Timeout is tracked on the client and also sent to the server along
	// with the transaction in the wire protocol. The client will most likely
	// timeout first, but the server has the capability to Timeout the transaction.
	//
	// If Timeout is not zero and Timeout is reached before the transaction
	// completes, the transaction will abort with Timeout error.
	//
	// If Timeout is zero, there will be no time limit and the transaction will retry
	// on network timeouts/errors until MaxRetries is exceeded. If MaxRetries is exceeded, the
	// transaction also aborts with Timeout error.
	//
	// Default: 0 (no time limit and rely on MaxRetries).
	Timeout time.Duration

	// SocketTimeout determines network timeout for each attempt.
	//
	// If SocketTimeout is not zero and SocketTimeout is reached before an attempt completes,
	// the Timeout above is checked. If Timeout is not exceeded, the transaction
	// is retried. If both SocketTimeout and Timeout are non-zero, SocketTimeout must be less
	// than or equal to Timeout.
	//
	// If SocketTimeout is zero, there will be no time limit per attempt. If the transaction
	// fails on a network error, the Timeout still applies.
	//
	// Default: 0 (no SocketTimeout for each attempt).
	SocketTimeout time.Duration

	// MaxRetries determines maximum number of retries before aborting the current transaction.
	// A retry is attempted when there is a network error other than timeout.
	// If maxRetries is exceeded, the abort will occur even if the timeout
	// has not yet been exceeded.
	MaxRetries int //= 2;

	// SleepBetweenReplies determines duration to sleep between retries if a transaction fails and the
	// timeout was not exceeded.  Enter zero to skip sleep.
	SleepBetweenRetries time.Duration //= 1ms;

	// SleepMultiplier specifies the multiplying factor to be used for exponential backoff during retries.
	// Default to (1.0); Only values greater than 1 are valid.
	SleepMultiplier float64 //= 1.0;

	// ReplicaPolicy detemines the node to send the read commands containing the key's partition replica type.
	// Write commands are not affected by this setting, because all writes are directed
	// to the node containing the key's master partition.
	// Batch, scan and query are also not affected by replica algorithms.
	// Default to sending read commands to the node containing the key's master partition.
	ReplicaPolicy ReplicaPolicy
}

BasePolicy encapsulates parameters for transaction policy attributes used in all database operation calls.

func NewPolicy 

func NewPolicy() *BasePolicy

NewPolicy generates a new BasePolicy instance with default values.

func (*BasePolicy) GetBasePolicy 

func (p *BasePolicy) GetBasePolicy() *BasePolicy

GetBasePolicy returns embedded BasePolicy in all types that embed this struct.

type Bin 

type Bin struct {
	// Bin name. Current limit is 14 characters.
	Name string

	// Bin value.
	Value Value
}

Bin encapsulates a field name/value pair.

func NewBin 

func NewBin(name string, value interface{}) *Bin

NewBin generates a new Bin instance, specifying bin name and string value. For servers configured as "single-bin", enter an empty name.

func (*Bin) String 

func (bn *Bin) String() string

String implements Stringer interface.

type BinMap 

type BinMap map[string]interface{}

BinMap is used to define a map of bin names to values.

type BufferEx added in v1.23.0 

type BufferEx interface {
	WriteInt64(num int64) (int, error)
	WriteUint64(num uint64) (int, error)
	WriteInt32(num int32) (int, error)
	WriteUint32(num uint32) (int, error)
	WriteInt16(num int16) (int, error)
	WriteUint16(num uint16) (int, error)
	WriteFloat32(float float32) (int, error)
	WriteFloat64(float float64) (int, error)
	WriteByte(b byte) error
	WriteString(s string) (int, error)
	Write(b []byte) (int, error)
}

BufferEx is a specialized buffer interface for aerospike client.

type BytesValue 

type BytesValue []byte

BytesValue encapsulates an array of bytes.

func NewBlobValue 

func NewBlobValue(object AerospikeBlob) BytesValue

NewBlobValue accepts an AerospikeBlob interface, and automatically converts it to a BytesValue. If Encode returns an err, it will panic.

func NewBytesValue 

func NewBytesValue(bytes []byte) BytesValue

NewBytesValue generates a ByteValue instance.

func (BytesValue) GetObject 

func (vl BytesValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (BytesValue) GetType 

func (vl BytesValue) GetType() int

GetType returns wire protocol value type.

func (BytesValue) String 

func (vl BytesValue) String() string

String implements Stringer interface.

type Client 

type Client struct {

	// DefaultPolicy is used for all read commands without a specific policy.
	DefaultPolicy *BasePolicy
	// DefaultWritePolicy is used for all write commands without a specific policy.
	DefaultWritePolicy *WritePolicy
	// DefaultScanPolicy is used for all scan commands without a specific policy.
	DefaultScanPolicy *ScanPolicy
	// DefaultQueryPolicy is used for all query commands without a specific policy.
	DefaultQueryPolicy *QueryPolicy
	// DefaultAdminPolicy is used for all security commands without a specific policy.
	DefaultAdminPolicy *AdminPolicy
	// contains filtered or unexported fields
}

Client encapsulates an Aerospike cluster. All database operations are available against this object.

func NewClient 

func NewClient(hostname string, port int) (*Client, error)

NewClient generates a new Client instance.

func NewClientWithPolicy 

func NewClientWithPolicy(policy *ClientPolicy, hostname string, port int) (*Client, error)

NewClientWithPolicy generates a new Client using the specified ClientPolicy. If the policy is nil, the default relevant policy will be used.

func NewClientWithPolicyAndHost 

func NewClientWithPolicyAndHost(policy *ClientPolicy, hosts ...*Host) (*Client, error)

NewClientWithPolicyAndHost generates a new Client the specified ClientPolicy and sets up the cluster using the provided hosts. If the policy is nil, the default relevant policy will be used.

func (*Client) Add 

func (clnt *Client) Add(policy *WritePolicy, key *Key, binMap BinMap) error

Add adds integer bin values to existing record bin values. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. This call only works for integer values. If the policy is nil, the default relevant policy will be used.

Example 
key, err := as.NewKey("test", "test", "addkey")
if err != nil {
	log.Fatal(err)
}

if _, err = client.Delete(nil, key); err != nil {
	log.Fatal(err)
}

// Add to a non-existing record/bin, should create a record
bin := as.NewBin("bin", 10)
if err = client.AddBins(nil, key, bin); err != nil {
	log.Fatal(err)
}

// Add to 5 to the original 10
bin = as.NewBin("bin", 5)
if err = client.AddBins(nil, key, bin); err != nil {
	log.Fatal(err)
}

// Check the result
record, err := client.Get(nil, key, bin.Name)
if err != nil {
	log.Fatal(err)
}
fmt.Println(record.Bins["bin"])

// Demonstrate add and get combined.
bin = as.NewBin("bin", 30)
if record, err = client.Operate(nil, key, as.AddOp(bin), as.GetOp()); err != nil {
	log.Fatal(err)
}

fmt.Println(record.Bins["bin"])

Output:

15
45

func (*Client) AddBins 

func (clnt *Client) AddBins(policy *WritePolicy, key *Key, bins ...*Bin) error

AddBins works the same as Add, but avoids BinMap allocation and iteration.

func (*Client) Append 

func (clnt *Client) Append(policy *WritePolicy, key *Key, binMap BinMap) error

Append appends bin value's string to existing record bin values. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. This call only works for string and []byte values. If the policy is nil, the default relevant policy will be used.

Example 
key, err := as.NewKey("test", "test", "appendkey")
if err != nil {
	log.Fatal(err)
}

if _, err = client.Delete(nil, key); err != nil {
	log.Fatal(err)
}

// Create by appending to non-existing value
bin1 := as.NewBin("myBin", "Hello")
if err = client.AppendBins(nil, key, bin1); err != nil {
	log.Fatal(err)
}

// Append World
bin2 := as.NewBin("myBin", " World")
if err = client.AppendBins(nil, key, bin2); err != nil {
	log.Fatal(err)
}

record, err := client.Get(nil, key)
if err != nil {
	log.Fatal(err)
}

fmt.Println(record.Bins["myBin"])

Output:

Hello World

func (*Client) AppendBins 

func (clnt *Client) AppendBins(policy *WritePolicy, key *Key, bins ...*Bin) error

AppendBins works the same as Append, but avoids BinMap allocation and iteration.

func (*Client) BatchExists added in v1.0.1 

func (clnt *Client) BatchExists(policy *BasePolicy, keys []*Key) ([]bool, error)

BatchExists determines if multiple record keys exist in one batch request. The returned boolean array is in positional order with the original key array order. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) BatchGet added in v1.0.1 

func (clnt *Client) BatchGet(policy *BasePolicy, keys []*Key, binNames ...string) ([]*Record, error)

BatchGet reads multiple record headers and bins for specified keys in one batch request. The returned records are in positional order with the original key array order. If a key is not found, the positional record will be nil. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) BatchGetHeader added in v1.0.1 

func (clnt *Client) BatchGetHeader(policy *BasePolicy, keys []*Key) ([]*Record, error)

BatchGetHeader reads multiple record header data for specified keys in one batch request. The returned records are in positional order with the original key array order. If a key is not found, the positional record will be nil. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) BatchGetObjects added in v1.27.0 

func (clnt *Client) BatchGetObjects(policy *BasePolicy, keys []*Key, objects []interface{}) (found []bool, err error)

BatchGetObject reads multiple record headers and bins for specified keys in one batch request. The returned objects are in positional order with the original key array order. If a key is not found, the positional object will not change, and the positional found boolean will be false. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) ChangePassword added in v1.3.0 

func (clnt *Client) ChangePassword(policy *AdminPolicy, user string, password string) error

ChangePassword changes a user's password. Clear-text password will be hashed using bcrypt before sending to server.

func (*Client) Close 

func (clnt *Client) Close()

Close closes all client connections to database server nodes.

func (*Client) Cluster added in v1.23.0 

func (clnt *Client) Cluster() *Cluster

Cluster exposes the cluster object to the user

func (*Client) CreateComplexIndex added in v1.7.0 

func (clnt *Client) CreateComplexIndex(
	policy *WritePolicy,
	namespace string,
	setName string,
	indexName string,
	binName string,
	indexType IndexType,
	indexCollectionType IndexCollectionType,
) (*IndexTask, error)

CreateComplexIndex creates a secondary index, with the ability to put indexes on bin containing complex data types, e.g: Maps and Lists. This asynchronous server call will return before the command is complete. The user can optionally wait for command completion by using the returned IndexTask instance. This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) CreateIndex added in v1.0.1 

func (clnt *Client) CreateIndex(
	policy *WritePolicy,
	namespace string,
	setName string,
	indexName string,
	binName string,
	indexType IndexType,
) (*IndexTask, error)

CreateIndex creates a secondary index. This asynchronous server call will return before the command is complete. The user can optionally wait for command completion by using the returned IndexTask instance. This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) CreateRole added in v1.24.0 

func (clnt *Client) CreateRole(policy *AdminPolicy, roleName string, privileges []Privilege) error

CreateRole creates a user-defined role.

func (*Client) CreateUser added in v1.3.0 

func (clnt *Client) CreateUser(policy *AdminPolicy, user string, password string, roles []string) error

CreateUser creates a new user with password and roles. Clear-text password will be hashed using bcrypt before sending to server.

func (*Client) Delete 

func (clnt *Client) Delete(policy *WritePolicy, key *Key) (bool, error)

Delete deletes a record for specified key. The policy specifies the transaction timeout. If the policy is nil, the default relevant policy will be used.

func (*Client) DropIndex added in v1.0.1 

func (clnt *Client) DropIndex(
	policy *WritePolicy,
	namespace string,
	setName string,
	indexName string,
) error

DropIndex deletes a secondary index. It will block until index is dropped on all nodes. This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) DropRole added in v1.24.0 

func (clnt *Client) DropRole(policy *AdminPolicy, roleName string) error

DropRole removes a user-defined role.

func (*Client) DropUser added in v1.3.0 

func (clnt *Client) DropUser(policy *AdminPolicy, user string) error

DropUser removes a user from the cluster.

func (*Client) Execute added in v1.0.1 

func (clnt *Client) Execute(policy *WritePolicy, key *Key, packageName string, functionName string, args ...Value) (interface{}, error)

Execute executes a user defined function on server and return results. The function operates on a single record. The package name is used to locate the udf file location:

udf file = <server udf dir>/<package name>.lua

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) ExecuteUDF added in v1.0.1 

func (clnt *Client) ExecuteUDF(policy *QueryPolicy,
	statement *Statement,
	packageName string,
	functionName string,
	functionArgs ...Value,
) (*ExecuteTask, error)

ExecuteUDF applies user defined function on records that match the statement filter. Records are not returned to the client. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned ExecuteTask instance.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) ExecuteUDFNode added in v1.30.0 

func (clnt *Client) ExecuteUDFNode(policy *QueryPolicy,
	node *Node,
	statement *Statement,
	packageName string,
	functionName string,
	functionArgs ...Value,
) (*ExecuteTask, error)

ExecuteUDFNode applies user defined function on records that match the statement filter on the specified node. Records are not returned to the client. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned ExecuteTask instance.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) Exists 

func (clnt *Client) Exists(policy *BasePolicy, key *Key) (bool, error)

Exists determine if a record key exists. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) Get 

func (clnt *Client) Get(policy *BasePolicy, key *Key, binNames ...string) (*Record, error)

Get reads a record header and bins for specified key. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) GetHeader 

func (clnt *Client) GetHeader(policy *BasePolicy, key *Key) (*Record, error)

GetHeader reads a record generation and expiration only for specified key. Bins are not read. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) GetNodeNames 

func (clnt *Client) GetNodeNames() []string

GetNodeNames returns a list of active server node names in the cluster.

func (*Client) GetNodes 

func (clnt *Client) GetNodes() []*Node

GetNodes returns an array of active server nodes in the cluster.

func (*Client) GetObject added in v1.4.0 

func (clnt *Client) GetObject(policy *BasePolicy, key *Key, obj interface{}) error

GetObject reads a record for specified key and puts the result into the provided object. The policy can be used to specify timeouts. If the policy is nil, the default relevant policy will be used.

func (*Client) GrantPrivileges added in v1.24.0 

func (clnt *Client) GrantPrivileges(policy *AdminPolicy, roleName string, privileges []Privilege) error

GrantPrivileges grant privileges to a user-defined role.

func (*Client) GrantRoles added in v1.3.0 

func (clnt *Client) GrantRoles(policy *AdminPolicy, user string, roles []string) error

GrantRoles adds roles to user's list of roles.

func (*Client) IsConnected 

func (clnt *Client) IsConnected() bool

IsConnected determines if the client is ready to talk to the database server cluster.

func (*Client) ListUDF added in v1.0.1 

func (clnt *Client) ListUDF(policy *BasePolicy) ([]*UDF, error)

ListUDF lists all packages containing user defined functions in the server. This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) Operate added in v1.0.1 

func (clnt *Client) Operate(policy *WritePolicy, key *Key, operations ...*Operation) (*Record, error)

Operate performs multiple read/write operations on a single key in one batch request. An example would be to add an integer value to an existing record and then read the result, all in one database call.

Write operations are always performed first, regardless of operation order relative to read operations. If the policy is nil, the default relevant policy will be used.

func (*Client) Prepend 

func (clnt *Client) Prepend(policy *WritePolicy, key *Key, binMap BinMap) error

Prepend prepends bin value's string to existing record bin values. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. This call works only for string and []byte values. If the policy is nil, the default relevant policy will be used.

func (*Client) PrependBins 

func (clnt *Client) PrependBins(policy *WritePolicy, key *Key, bins ...*Bin) error

PrependBins works the same as Prepend, but avoids BinMap allocation and iteration.

func (*Client) Put 

func (clnt *Client) Put(policy *WritePolicy, key *Key, binMap BinMap) error

Put writes record bin(s) to the server. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. If the policy is nil, the default relevant policy will be used.

func (*Client) PutBins 

func (clnt *Client) PutBins(policy *WritePolicy, key *Key, bins ...*Bin) error

PutBins writes record bin(s) to the server. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. This method avoids using the BinMap allocation and iteration and is lighter on GC. If the policy is nil, the default relevant policy will be used.

func (*Client) PutObject added in v1.4.0 

func (clnt *Client) PutObject(policy *WritePolicy, key *Key, obj interface{}) (err error)

PutObject writes record bin(s) to the server. The policy specifies the transaction timeout, record expiration and how the transaction is handled when the record already exists. If the policy is nil, the default relevant policy will be used.

func (*Client) Query added in v1.0.1 

func (clnt *Client) Query(policy *QueryPolicy, statement *Statement) (*Recordset, error)

Query executes a query and returns a Recordset. The query executor puts records on the channel from separate goroutines. The caller can concurrently pop records off the channel through the Recordset.Records channel.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryAggregate added in v1.10.0 

func (clnt *Client) QueryAggregate(policy *QueryPolicy, statement *Statement, packageName, functionName string, functionArgs ...interface{}) (*Recordset, error)

QueryAggregate executes a Map/Reduce query and returns the results. The query executor puts records on the channel from separate goroutines. The caller can concurrently pop records off the channel through the Recordset.Records channel.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryNode added in v1.3.0 

func (clnt *Client) QueryNode(policy *QueryPolicy, node *Node, statement *Statement) (*Recordset, error)

QueryNode executes a query on a specific node and returns a recordset. The caller can concurrently pop records off the channel through the record channel.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryNodeObjects added in v1.8.0 

func (clnt *Client) QueryNodeObjects(policy *QueryPolicy, node *Node, statement *Statement, objChan interface{}) (*Recordset, error)

QueryNodeObjects executes a query on a specific node and marshals the records into the given channel. The caller can concurrently pop records off the channel.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryObjects added in v1.8.0 

func (clnt *Client) QueryObjects(policy *QueryPolicy, statement *Statement, objChan interface{}) (*Recordset, error)

QueryNodeObjects executes a query on all nodes in the cluster and marshals the records into the given channel. The query executor puts records on the channel from separate goroutines. The caller can concurrently pop objects.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) QueryRole added in v1.24.0 

func (clnt *Client) QueryRole(policy *AdminPolicy, role string) (*Role, error)

QueryRole retrieves privileges for a given role.

func (*Client) QueryRoles added in v1.24.0 

func (clnt *Client) QueryRoles(policy *AdminPolicy) ([]*Role, error)

QueryRoles retrieves all roles and their privileges.

func (*Client) QueryUser added in v1.3.0 

func (clnt *Client) QueryUser(policy *AdminPolicy, user string) (*UserRoles, error)

QueryUser retrieves roles for a given user.

func (*Client) QueryUsers added in v1.3.0 

func (clnt *Client) QueryUsers(policy *AdminPolicy) ([]*UserRoles, error)

QueryUsers retrieves all users and their roles.

func (*Client) RegisterUDF added in v1.0.1 

func (clnt *Client) RegisterUDF(policy *WritePolicy, udfBody []byte, serverPath string, language Language) (*RegisterTask, error)

RegisterUDF registers a package containing user defined functions with server. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned RegisterTask instance.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) RegisterUDFFromFile added in v1.0.1 

func (clnt *Client) RegisterUDFFromFile(policy *WritePolicy, clientPath string, serverPath string, language Language) (*RegisterTask, error)

RegisterUDFFromFile reads a file from file system and registers the containing a package user defined functions with the server. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned RegisterTask instance.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) RemoveUDF added in v1.0.1 

func (clnt *Client) RemoveUDF(policy *WritePolicy, udfName string) (*RemoveTask, error)

RemoveUDF removes a package containing user defined functions in the server. This asynchronous server call will return before command is complete. The user can optionally wait for command completion by using the returned RemoveTask instance.

This method is only supported by Aerospike 3 servers. If the policy is nil, the default relevant policy will be used.

func (*Client) RevokePrivileges added in v1.24.0 

func (clnt *Client) RevokePrivileges(policy *AdminPolicy, roleName string, privileges []Privilege) error

RevokePrivileges revokes privileges from a user-defined role.

func (*Client) RevokeRoles added in v1.3.0 

func (clnt *Client) RevokeRoles(policy *AdminPolicy, user string, roles []string) error

RevokeRoles removes roles from user's list of roles.

func (*Client) ScanAll added in v1.0.1 

func (clnt *Client) ScanAll(apolicy *ScanPolicy, namespace string, setName string, binNames ...string) (*Recordset, error)

ScanAll reads all records in specified namespace and set from all nodes. If the policy's concurrentNodes is specified, each server node will be read in parallel. Otherwise, server nodes are read sequentially. If the policy is nil, the default relevant policy will be used.

func (*Client) ScanAllObjects added in v1.8.0 

func (clnt *Client) ScanAllObjects(apolicy *ScanPolicy, objChan interface{}, namespace string, setName string, binNames ...string) (*Recordset, error)

ScanAllObjects reads all records in specified namespace and set from all nodes. If the policy's concurrentNodes is specified, each server node will be read in parallel. Otherwise, server nodes are read sequentially. If the policy is nil, the default relevant policy will be used.

func (*Client) ScanNode added in v1.0.1 

func (clnt *Client) ScanNode(apolicy *ScanPolicy, node *Node, namespace string, setName string, binNames ...string) (*Recordset, error)

ScanNode reads all records in specified namespace and set for one node only. If the policy is nil, the default relevant policy will be used.

func (*Client) ScanNodeObjects added in v1.8.0 

func (clnt *Client) ScanNodeObjects(apolicy *ScanPolicy, node *Node, objChan interface{}, namespace string, setName string, binNames ...string) (*Recordset, error)

scanNodeObjects reads all records in specified namespace and set for one node only, and marshalls the results into the objects of the provided channel in Recordset. If the policy is nil, the default relevant policy will be used. The resulting records will be marshalled into the objChan. objChan will be closed after all the records are read.

func (*Client) Stats added in v1.28.0 

func (clnt *Client) Stats() (map[string]interface{}, error)

Stats returns internal statistics regarding the inner state of the client and the cluster.

func (*Client) String added in v1.11.0 

func (clnt *Client) String() string

String implements the Stringer interface for client

func (*Client) Touch 

func (clnt *Client) Touch(policy *WritePolicy, key *Key) error

Touch updates a record's metadata. If the record exists, the record's TTL will be reset to the policy's expiration. If the record doesn't exist, it will return an error.

func (*Client) Truncate added in v1.26.0 

func (clnt *Client) Truncate(policy *WritePolicy, namespace, set string, beforeLastUpdate *time.Time) error

Remove records in specified namespace/set efficiently. This method is many orders of magnitude faster than deleting records one at a time. Works with Aerospike Server versions >= 3.12. This asynchronous server call may return before the truncation is complete. The user can still write new records after the server call returns because new records will have last update times greater than the truncate cutoff (set at the time of truncate call).

type ClientPolicy 

type ClientPolicy struct {
	// User authentication to cluster. Leave empty for clusters running without restricted access.
	User string

	// Password authentication to cluster. The password will be stored by the client and sent to server
	// in hashed format. Leave empty for clusters running without restricted access.
	Password string

	// ClusterName sets the expected cluster ID.  If not null, server nodes must return this cluster ID in order to
	// join the client's view of the cluster. Should only be set when connecting to servers that
	// support the "cluster-name" info command. (v3.10+)
	ClusterName string //=""

	// Initial host connection timeout duration.  The timeout when opening a connection
	// to the server host for the first time.
	Timeout time.Duration //= 30 seconds

	// Connection idle timeout. Every time a connection is used, its idle
	// deadline will be extended by this duration. When this deadline is reached,
	// the connection will be closed and discarded from the connection pool.
	IdleTimeout time.Duration //= 14 seconds

	// ConnectionQueueCache specifies the size of the Connection Queue cache PER NODE.
	ConnectionQueueSize int //= 256

	// If set to true, will not create a new connection
	// to the node if there are already `ConnectionQueueSize` active connections.
	LimitConnectionsToQueueSize bool //= true

	// Throw exception if host connection fails during addHost().
	FailIfNotConnected bool //= true

	// TendInterval determines interval for checking for cluster state changes.
	// Minimum possible interval is 10 Milliseconds.
	TendInterval time.Duration //= 1 second

	// A IP translation table is used in cases where different clients
	// use different server IP addresses.  This may be necessary when
	// using clients from both inside and outside a local area
	// network. Default is no translation.
	// The key is the IP address returned from friend info requests to other servers.
	// The value is the real IP address used to connect to the server.
	IpMap map[string]string

	// UseServicesAlternate determines if the client should use "services-alternate" instead of "services"
	// in info request during cluster tending.
	//"services-alternate" returns server configured external IP addresses that client
	// uses to talk to nodes.  "services-alternate" can be used in place of providing a client "ipMap".
	// This feature is recommended instead of using the client-side IpMap above.
	//
	// "services-alternate" is available with Aerospike Server versions >= 3.7.1.
	UseServicesAlternate bool // false

	// RequestProleReplicas determines if prole replicas should be requested from each server node in the cluster tend goroutine.
	// This option is required if there is a need to distribute reads across proles.
	// If RequestProleReplicas is enabled, all prole partition maps will be cached on the client which results in
	// extra storage multiplied by the replication factor.
	// The default is false (only request master replicas and never prole replicas).
	RequestProleReplicas bool // false

	// TlsConfig specifies TLS secure connection policy for TLS enabled servers.
	// For better performance, we suggest prefering the server-side ciphers by
	// setting PreferServerCipherSuites = true.
	TlsConfig *tls.Config //= nil

	// IgnoreOtherSubnetAliases helps to ignore aliases that are outside main subnet
	IgnoreOtherSubnetAliases bool //= false
}

ClientPolicy encapsulates parameters for client policy command.

func NewClientPolicy 

func NewClientPolicy() *ClientPolicy

NewClientPolicy generates a new ClientPolicy with default values.

func (*ClientPolicy) RequiresAuthentication added in v1.3.0 

func (cp *ClientPolicy) RequiresAuthentication() bool

RequiresAuthentication returns true if a USer or Password is set for ClientPolicy.

type Cluster 

type Cluster struct {
	// contains filtered or unexported fields
}

Cluster encapsulates the aerospike cluster nodes and manages them.

func NewCluster 

func NewCluster(policy *ClientPolicy, hosts []*Host) (*Cluster, error)

NewCluster generates a Cluster instance.

func (*Cluster) AddSeeds 

func (clstr *Cluster) AddSeeds(hosts []*Host)

AddSeeds adds new hosts to the cluster. They will be added to the cluster on next tend call.

func (*Cluster) ClientPolicy added in v1.5.1 

func (clstr *Cluster) ClientPolicy() (res ClientPolicy)

ClientPolicy returns the client policy that is currently used with the cluster.

func (*Cluster) Close 

func (clstr *Cluster) Close()

Close closes all cached connections to the cluster nodes and stops the tend goroutine.

func (*Cluster) GetAliases added in v1.23.0 

func (clstr *Cluster) GetAliases() map[Host]*Node

GetAliases returns a list of all node aliases in the cluster

func (*Cluster) GetNodeByName 

func (clstr *Cluster) GetNodeByName(nodeName string) (*Node, error)

GetNodeByName finds a node by name and returns an error if the node is not found.

func (*Cluster) GetNodes 

func (clstr *Cluster) GetNodes() []*Node

GetNodes returns a list of all nodes in the cluster

func (*Cluster) GetRandomNode 

func (clstr *Cluster) GetRandomNode() (*Node, error)

GetRandomNode returns a random node on the cluster

func (*Cluster) GetSeeds added in v1.23.0 

func (clstr *Cluster) GetSeeds() []Host

GetSeeds returns a list of all seed nodes in the cluster

func (*Cluster) IsConnected 

func (clstr *Cluster) IsConnected() bool

IsConnected returns true if cluster has nodes and is not already closed.

func (*Cluster) MigrationInProgress added in v1.0.1 

func (clstr *Cluster) MigrationInProgress(timeout time.Duration) (res bool, err error)

MigrationInProgress determines if any node in the cluster is participating in a data migration

func (*Cluster) Password added in v1.5.1 

func (clstr *Cluster) Password() (res []byte)

Password returns the password that is currently used with the cluster.

func (*Cluster) String added in v1.11.0 

func (clstr *Cluster) String() string

String implements the stringer interface

func (*Cluster) WaitUntillMigrationIsFinished added in v1.0.1 

func (clstr *Cluster) WaitUntillMigrationIsFinished(timeout time.Duration) (err error)

WaitUntillMigrationIsFinished will block until all migration operations in the cluster all finished.

type CommitLevel added in v1.2.0 

type CommitLevel int

CommitLevel indicates the desired consistency guarantee when committing a transaction on the server. 

const (
	// COMMIT_ALL indicates the server should wait until successfully committing master and all replicas.
	COMMIT_ALL CommitLevel = iota

	// COMMIT_MASTER indicates the server should wait until successfully committing master only.
	COMMIT_MASTER
)

type Connection 

type Connection struct {
	// contains filtered or unexported fields
}

Connection represents a connection with a timeout.

func NewConnection 

func NewConnection(address string, timeout time.Duration) (*Connection, error)

NewConnection creates a connection on the network and returns the pointer A minimum timeout of 2 seconds will always be applied. If the connection is not established in the specified timeout, an error will be returned

func NewSecureConnection added in v1.19.0 

func NewSecureConnection(policy *ClientPolicy, host *Host) (*Connection, error)

NewSecureConnection creates a TLS connection on the network and returns the pointer. A minimum timeout of 2 seconds will always be applied. If the connection is not established in the specified timeout, an error will be returned

func (*Connection) Authenticate added in v1.5.0 

func (ctn *Connection) Authenticate(user string, password []byte) error

Authenticate will send authentication information to the server.

func (*Connection) Close 

func (ctn *Connection) Close()

Close closes the connection

func (*Connection) IsConnected 

func (ctn *Connection) IsConnected() bool

IsConnected returns true if the connection is not closed yet.

func (*Connection) Read 

func (ctn *Connection) Read(buf []byte, length int) (total int, err error)

Read reads from connection buffer to the provided slice.

func (*Connection) ReadN added in v1.10.0 

func (ctn *Connection) ReadN(buf io.Writer, length int64) (total int64, err error)

ReadN reads N bytes from connection buffer to the provided Writer.

func (*Connection) SetTimeout 

func (ctn *Connection) SetTimeout(timeout time.Duration) error

SetTimeout sets connection timeout for both read and write operations.

func (*Connection) Write 

func (ctn *Connection) Write(buf []byte) (total int, err error)

Write writes the slice to the connection buffer.

type ConsistencyLevel added in v1.2.0 

type ConsistencyLevel int

ConsistencyLevel indicates how replicas should be consulted in a read operation to provide the desired consistency guarantee.

type DropIndexTask added in v1.17.0 

type DropIndexTask struct {
	// contains filtered or unexported fields
}

DropIndexTask is used to poll for long running create index completion.

func NewDropIndexTask added in v1.17.0 

func NewDropIndexTask(cluster *Cluster, namespace string, indexName string) *DropIndexTask

NewDropIndexTask initializes a task with fields needed to query server nodes.

func (*DropIndexTask) IsDone added in v1.17.0 

func (tski *DropIndexTask) IsDone() (bool, error)

IsDone queries all nodes for task completion status.

func (*DropIndexTask) OnComplete added in v1.17.0 

func (tski *DropIndexTask) OnComplete() chan error

OnComplete returns a channel that will be closed as soon as the task is finished. If an error is encountered during operation, an error will be sent on the channel.

type ExecuteTask added in v1.0.1 

type ExecuteTask struct {
	// contains filtered or unexported fields
}

ExecuteTask is used to poll for long running server execute job completion.

func NewExecuteTask added in v1.0.1 

func NewExecuteTask(cluster *Cluster, statement *Statement) *ExecuteTask

NewExecuteTask initializes task with fields needed to query server nodes.

func (*ExecuteTask) IsDone added in v1.0.1 

func (etsk *ExecuteTask) IsDone() (bool, error)

IsDone queries all nodes for task completion status.

func (*ExecuteTask) OnComplete added in v1.0.1 

func (etsk *ExecuteTask) OnComplete() chan error

OnComplete returns a channel which will be closed when the task is completed. If an error is encountered while performing the task, an error will be sent on the channel.

type FieldType 

type FieldType int

FieldType represents the type of the field in Aerospike Wire Protocol 

const (
	NAMESPACE FieldType = 0
	TABLE     FieldType = 1
	KEY       FieldType = 2

	DIGEST_RIPE FieldType = 4

	DIGEST_RIPE_ARRAY FieldType = 6
	TRAN_ID           FieldType = 7 // user supplied transaction id, which is simply passed back
	SCAN_OPTIONS      FieldType = 8
	SCAN_TIMEOUT      FieldType = 9
	INDEX_NAME        FieldType = 21
	INDEX_RANGE       FieldType = 22
	INDEX_FILTER      FieldType = 23
	INDEX_LIMIT       FieldType = 24
	INDEX_ORDER_BY    FieldType = 25
	INDEX_TYPE                  = 26
	UDF_PACKAGE_NAME  FieldType = 30
	UDF_FUNCTION      FieldType = 31
	UDF_ARGLIST       FieldType = 32
	UDF_OP            FieldType = 33
	QUERY_BINLIST     FieldType = 40
	PREDEXP           FieldType = 43
)

FieldType constants used in the Aerospike Wire Protocol.

type Filter added in v1.0.1 

type Filter struct {
	// contains filtered or unexported fields
}

Filter specifies a query filter definition.

func NewContainsFilter added in v1.7.0 

func NewContainsFilter(binName string, indexCollectionType IndexCollectionType, value interface{}) *Filter

NewContainsFilter creates a contains filter for query on collection index.

func NewContainsRangeFilter added in v1.7.0 

func NewContainsRangeFilter(binName string, indexCollectionType IndexCollectionType, begin, end int64) *Filter

NewContainsRangeFilter creates a contains filter for query on ranges of data in a collection index.

func NewEqualFilter added in v1.0.1 

func NewEqualFilter(binName string, value interface{}) *Filter

NewEqualFilter creates a new equality filter instance for query.

func NewGeoRegionsContainingPointFilter added in v1.9.0 

func NewGeoRegionsContainingPointFilter(binName, point string) *Filter

NewGeoRegionsContainingPointFilter creates a geospatial "containing point" filter for query. Argument must be a valid GeoJSON point.

func NewGeoRegionsContainingPointForCollectionFilter added in v1.13.0 

func NewGeoRegionsContainingPointForCollectionFilter(binName string, collectionType IndexCollectionType, point string) *Filter

NewGeoRegionsContainingPointForCollectionFilter creates a geospatial "containing point" filter for query on collection index. Argument must be a valid GeoJSON point.

func NewGeoWithinRadiusFilter added in v1.9.0 

func NewGeoWithinRadiusFilter(binName string, lng, lat, radius float64) *Filter

NewGeoWithinRadiusFilter creates a geospatial "within radius" filter for query. Arguments must be valid longitude/latitude/radius (meters) values.

func NewGeoWithinRadiusForCollectionFilter added in v1.13.0 

func NewGeoWithinRadiusForCollectionFilter(binName string, collectionType IndexCollectionType, lng, lat, radius float64) *Filter

NewGeoWithinRadiusForCollectionFilter creates a geospatial "within radius" filter for query on collection index. Arguments must be valid longitude/latitude/radius (meters) values.

func NewGeoWithinRegionFilter added in v1.9.0 

func NewGeoWithinRegionFilter(binName, region string) *Filter

NewGeoWithinRegionFilter creates a geospatial "within region" filter for query. Argument must be a valid GeoJSON region.

func NewGeoWithinRegionForCollectionFilter added in v1.13.0 

func NewGeoWithinRegionForCollectionFilter(binName string, collectionType IndexCollectionType, region string) *Filter

NewGeoWithinRegionForCollectionFilter creates a geospatial "within region" filter for query on collection index. Argument must be a valid GeoJSON region.

func NewRangeFilter added in v1.0.1 

func NewRangeFilter(binName string, begin int64, end int64) *Filter

NewRangeFilter creates a range filter for query. Range arguments must be int64 values. String ranges are not supported.

func (*Filter) IndexCollectionType added in v1.7.0 

func (fltr *Filter) IndexCollectionType() IndexCollectionType

IndexType return filter's index type.

type FloatValue added in v1.7.0 

type FloatValue float64

FloatValue encapsulates an float64 value.

func NewFloatValue added in v1.7.0 

func NewFloatValue(value float64) FloatValue

NewFloatValue generates a FloatValue instance.

func (FloatValue) GetObject added in v1.7.0 

func (vl FloatValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (FloatValue) GetType added in v1.7.0 

func (vl FloatValue) GetType() int

GetType returns wire protocol value type.

func (FloatValue) String added in v1.7.0 

func (vl FloatValue) String() string

String implements Stringer interface.

type GenerationPolicy 

type GenerationPolicy int

GenerationPolicy determines how to handle record writes based on record generation. 

const (
	// NONE means: Do not use record generation to restrict writes.
	NONE GenerationPolicy = iota

	// EXPECT_GEN_EQUAL means: Update/Delete record if expected generation is equal to server generation. Otherwise, fail.
	EXPECT_GEN_EQUAL

	// EXPECT_GEN_GT means: Update/Delete record if expected generation greater than the server generation. Otherwise, fail.
	// This is useful for restore after backup.
	EXPECT_GEN_GT
)

type GeoJSONValue added in v1.7.0 

type GeoJSONValue string

GeoJSONValue encapsulates a 2D Geo point. Supported by Aerospike 3.6.1 servers only.

func NewGeoJSONValue added in v1.7.0 

func NewGeoJSONValue(value string) GeoJSONValue

NewMapValue generates a GeoJSONValue instance.

func (GeoJSONValue) GetObject added in v1.7.0 

func (vl GeoJSONValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (GeoJSONValue) GetType added in v1.7.0 

func (vl GeoJSONValue) GetType() int

GetType returns wire protocol value type.

func (GeoJSONValue) String added in v1.7.0 

func (vl GeoJSONValue) String() string

String implements Stringer interface.

type Host 

type Host struct {

	// Host name or IP address of database server.
	Name string

	//TLSName defines the TLS certificate name used for secure connections.
	TLSName string

	// Port of database server.
	Port int
}

Host name/port of database server.

func NewHost 

func NewHost(name string, port int) *Host

NewHost initializes new host instance.

func (*Host) String 

func (h *Host) String() string

Implements stringer interface

type IndexCollectionType added in v1.7.0 

type IndexCollectionType int

IndexCollectionType is the secondary index collection type. 

const (

	// Normal scalar index.
	ICT_DEFAULT IndexCollectionType = iota

	// LIST is Index list elements.
	ICT_LIST

	// MAPKEYS is Index map keys.
	ICT_MAPKEYS

	// MAPVALUES is Index map values.
	ICT_MAPVALUES
)

type IndexTask added in v1.0.1 

type IndexTask struct {
	// contains filtered or unexported fields
}

IndexTask is used to poll for long running create index completion.

func NewIndexTask added in v1.0.1 

func NewIndexTask(cluster *Cluster, namespace string, indexName string) *IndexTask

NewIndexTask initializes a task with fields needed to query server nodes.

func (*IndexTask) IsDone added in v1.0.1 

func (tski *IndexTask) IsDone() (bool, error)

IsDone queries all nodes for task completion status.

func (*IndexTask) OnComplete added in v1.0.1 

func (tski *IndexTask) OnComplete() chan error

OnComplete returns a channel that will be closed as soon as the task is finished. If an error is encountered during operation, an error will be sent on the channel.

type IndexType added in v1.0.1 

type IndexType string

IndexType the type of the secondary index. 

const (
	// NUMERIC specifies an index on numeric values.
	NUMERIC IndexType = "NUMERIC"

	// STRING specifies an index on string values.
	STRING IndexType = "STRING"

	// 2-dimensional spherical geospatial index.
	GEO2DSPHERE IndexType = "GEO2DSPHERE"
)

type IntegerValue 

type IntegerValue int

IntegerValue encapsulates an integer value.

func NewIntegerValue 

func NewIntegerValue(value int) IntegerValue

NewIntegerValue generates an IntegerValue instance.

func (IntegerValue) GetObject 

func (vl IntegerValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (IntegerValue) GetType 

func (vl IntegerValue) GetType() int

GetType returns wire protocol value type.

func (IntegerValue) String 

func (vl IntegerValue) String() string

String implements Stringer interface.

type JsonValue added in v1.20.0 

type JsonValue map[string]interface{}

JsonValue encapsulates a Json map. Supported by Aerospike 3 servers only.

func NewJsonValue added in v1.20.0 

func NewJsonValue(vmap map[string]interface{}) JsonValue

NewMapValue generates a JsonValue instance.

func (JsonValue) GetObject added in v1.20.0 

func (vl JsonValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (JsonValue) GetType added in v1.20.0 

func (vl JsonValue) GetType() int

GetType returns wire protocol value type.

func (JsonValue) String added in v1.20.0 

func (vl JsonValue) String() string

type Key 

type Key struct {
	// contains filtered or unexported fields
}

Key is the unique record identifier. Records can be identified using a specified namespace, an optional set name, and a user defined key which must be unique within a set. Records can also be identified by namespace/digest which is the combination used on the server.

func NewKey 

func NewKey(namespace string, setName string, key interface{}) (*Key, error)

NewKey initializes a key from namespace, optional set name and user key. The set name and user defined key are converted to a digest before sending to the server. The server handles record identifiers by digest only.

func NewKeyWithDigest added in v1.2.0 

func NewKeyWithDigest(namespace string, setName string, key interface{}, digest []byte) (*Key, error)

NewKeyWithDigest initializes a key from namespace, optional set name and user key. The server handles record identifiers by digest only.

func (*Key) Digest 

func (ky *Key) Digest() []byte

Digest returns key digest.

func (*Key) Equals 

func (ky *Key) Equals(other *Key) bool

Equals uses key digests to compare key equality.

func (*Key) Namespace 

func (ky *Key) Namespace() string

Namespace returns key's namespace.

func (*Key) SetDigest added in v1.2.0 

func (ky *Key) SetDigest(digest []byte) error

SetDigest sets a custom hash

func (*Key) SetName 

func (ky *Key) SetName() string

SetName returns key's set name.

func (*Key) SetValue added in v1.25.0 

func (ky *Key) SetValue(val Value) error

SetValue sets the Key's value and recompute's its digest without allocating new memory. This allows the keys to be reusable.

func (*Key) String added in v1.0.1 

func (ky *Key) String() string

String implements Stringer interface and returns string representation of key.

func (*Key) Value added in v1.0.1 

func (ky *Key) Value() Value

Value returns key's value.

type Language added in v1.0.1 

type Language string

Language specifies User defined function languages. 

const (

	// LUA embedded programming language.
	LUA Language = "LUA"
)

type ListIter added in v1.20.0 

type ListIter interface {
	PackList(buf BufferEx) (int, error)
	Len() int
}

ListIter allows to define general maps of your own type to be used in the Go client without the use of reflection. function PackList should be exactly Like the following (Do not change, just copy/paste and adapt PackXXX methods): 

func (cs *CustomSlice) PackList(buf aerospike.BufferEx) (int, error) {
	size := 0
	for _, elem := range cs {
		n, err := PackXXX(buf, elem)
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}
Example (Int) 
package main

import (
	"fmt"
	"log"

	as "github.com/aerospike/aerospike-client-go"
)

/*
myListInt
*/
var _ as.ListIter = myListInt([]int{})

// your custom list
type myListInt []int

func (ml myListInt) PackList(buf as.BufferEx) (int, error) {
	size := 0
	for _, elem := range ml {
		n, err := as.PackInt64(buf, int64(elem))
		size += n
		if err != nil {
			return size, err
		}
	}

	return size, nil
}

func (ml myListInt) Len() int {
	return len(ml)
}

func main() {
	// Setup the client here
	// client, err := as.NewClient("127.0.0.1", 3000)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	var v as.Value = as.NewValue(myListInt([]int{1, 2, 3}))
	key, err := as.NewKey("test", "test", 1)
	if err != nil {
		log.Fatal(err)
	}

	err = client.Put(nil, key, as.BinMap{"myBin": v})
	if err != nil {
		log.Fatal(err)
	}

	rec, err := client.Get(nil, key)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(rec.Bins["myBin"])
}

Output:

[1 2 3]
Example (String) 
package main

import (
	"fmt"
	"log"

	as "github.com/aerospike/aerospike-client-go"
)

/*
myListString
*/
var _ as.ListIter = myListString([]string{})

// your custom list
type myListString []string

func (ml myListString) PackList(buf as.BufferEx) (int, error) {
	size := 0
	for _, elem := range ml {
		n, err := as.PackString(buf, elem)
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}

func (ml myListString) Len() int {
	return len(ml)
}

func main() {
	// Setup the client here
	// client, err := as.NewClient("127.0.0.1", 3000)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	var v as.Value = as.NewValue(myListString([]string{"a", "b", "c"}))
	key, err := as.NewKey("test", "test", 1)
	if err != nil {
		log.Fatal(err)
	}

	err = client.Put(nil, key, as.BinMap{"myBin": v})
	if err != nil {
		log.Fatal(err)
	}

	rec, err := client.Get(nil, key)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(rec.Bins["myBin"])
}

Output:

[a b c]
Example (Time) 
package main

import (
	"fmt"
	"log"
	"time"

	as "github.com/aerospike/aerospike-client-go"
)

/*
myListTime
*/
var _ as.ListIter = myListTime([]time.Time{})

// your custom list
type myListTime []time.Time

func (ml myListTime) PackList(buf as.BufferEx) (int, error) {
	size := 0
	for _, elem := range ml {
		n, err := as.PackInt64(buf, elem.UnixNano())
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}

func (ml myListTime) Len() int {
	return len(ml)
}

func main() {
	// Setup the client here
	// client, err := as.NewClient("127.0.0.1", 3000)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	now1 := time.Unix(123123123, 0)
	now2 := time.Unix(123123124, 0)
	now3 := time.Unix(123123125, 0)
	var v as.Value = as.NewValue(myListTime([]time.Time{now1, now2, now3}))
	key, err := as.NewKey("test", "test", 1)
	if err != nil {
		log.Fatal(err)
	}

	err = client.Put(nil, key, as.BinMap{"myBin": v})
	if err != nil {
		log.Fatal(err)
	}

	rec, err := client.Get(nil, key)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(rec.Bins["myBin"])
}

Output:

[123123123000000000 123123124000000000 123123125000000000]

type ListValue 

type ListValue []interface{}

ListValue encapsulates any arbitrary array. Supported by Aerospike 3 servers only.

func NewListValue 

func NewListValue(list []interface{}) ListValue

NewListValue generates a ListValue instance.

func (ListValue) GetObject 

func (vl ListValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (ListValue) GetType 

func (vl ListValue) GetType() int

GetType returns wire protocol value type.

func (ListValue) String 

func (vl ListValue) String() string

String implements Stringer interface.

type ListerValue added in v1.20.0 

type ListerValue struct {
	// contains filtered or unexported fields
}

ListValue encapsulates any arbitrary array. Supported by Aerospike 3 servers only.

func NewListerValue added in v1.20.0 

func NewListerValue(list ListIter) *ListerValue

NewListValue generates a ListValue instance.

func (*ListerValue) GetObject added in v1.20.0 

func (vl *ListerValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (*ListerValue) GetType added in v1.20.0 

func (vl *ListerValue) GetType() int

GetType returns wire protocol value type.

func (*ListerValue) String added in v1.20.0 

func (vl *ListerValue) String() string

String implements Stringer interface.

type LongValue 

type LongValue int64

LongValue encapsulates an int64 value.

func NewLongValue 

func NewLongValue(value int64) LongValue

NewLongValue generates a LongValue instance.

func (LongValue) GetObject 

func (vl LongValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (LongValue) GetType 

func (vl LongValue) GetType() int

GetType returns wire protocol value type.

func (LongValue) String 

func (vl LongValue) String() string

String implements Stringer interface.

type MapIter added in v1.20.0 

type MapIter interface {
	PackMap(buf BufferEx) (int, error)
	Len() int
}
		n, err = PackXXX(buf, v)
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}
Example 
package main

import (
	"fmt"
	"log"
	"time"

	as "github.com/aerospike/aerospike-client-go"
)

/*
myMapStringTime
*/
var _ as.MapIter = myMapStringTime(map[string]time.Time{})

// your custom list
type myMapStringTime map[string]time.Time

func (mm myMapStringTime) PackMap(buf as.BufferEx) (int, error) {
	size := 0
	for key, val := range mm {
		n, err := as.PackString(buf, key)
		size += n
		if err != nil {
			return size, err
		}

		n, err = as.PackInt64(buf, val.UnixNano())
		size += n
		if err != nil {
			return size, err
		}
	}
	return size, nil
}

func (mm myMapStringTime) Len() int {
	return len(mm)
}

func main() {
	// Setup the client here
	// client, err := as.NewClient("127.0.0.1", 3000)
	// if err != nil {
	// 	log.Fatal(err)
	// }

	now := time.Unix(123123123, 0)
	var v as.Value = as.NewValue(myMapStringTime(map[string]time.Time{"now": now}))
	key, err := as.NewKey("test", "test", 1)
	if err != nil {
		log.Fatal(err)
	}

	err = client.Put(nil, key, as.BinMap{"myBin": v})
	if err != nil {
		log.Fatal(err)
	}

	rec, err := client.Get(nil, key)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(rec.Bins["myBin"])
}

Output:

map[now:123123123000000000]

type MapPair added in v1.16.0 

type MapPair struct{ Key, Value interface{} }

Map pair is used when the client returns sorted maps from the server Since the default map in Go is a hash map, we will use a slice to return the results in server order

type MapPolicy added in v1.16.0 

type MapPolicy struct {
	// contains filtered or unexported fields
}

MapPolicy directives when creating a map and writing map items.

func DefaultMapPolicy added in v1.16.0 

func DefaultMapPolicy() *MapPolicy

DefaultMapPolicy returns the default map policy

func NewMapPolicy added in v1.16.0 

func NewMapPolicy(order mapOrderType, writeMode *mapWriteMode) *MapPolicy

Create unique key map with specified order when map does not exist. Use specified write mode when writing map items.

type MapValue 

type MapValue map[interface{}]interface{}

MapValue encapsulates an arbitrary map. Supported by Aerospike 3 servers only.

func NewMapValue 

func NewMapValue(vmap map[interface{}]interface{}) MapValue

NewMapValue generates a MapValue instance.

func (MapValue) GetObject 

func (vl MapValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (MapValue) GetType 

func (vl MapValue) GetType() int

GetType returns wire protocol value type.

func (MapValue) String 

func (vl MapValue) String() string

type MapperValue added in v1.20.0 

type MapperValue struct {
	// contains filtered or unexported fields
}

MapperValue encapsulates an arbitrary map which implements a MapIter interface. Supported by Aerospike 3 servers only.

func NewMapperValue added in v1.20.0 

func NewMapperValue(vmap MapIter) *MapperValue

NewMapValue generates a MapperValue instance.

func (*MapperValue) GetObject added in v1.20.0 

func (vl *MapperValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (*MapperValue) GetType added in v1.20.0 

func (vl *MapperValue) GetType() int

GetType returns wire protocol value type.

func (*MapperValue) String added in v1.20.0 

func (vl *MapperValue) String() string

type MultiPolicy added in v1.0.2 

type MultiPolicy struct {
	*BasePolicy

	// Maximum number of concurrent requests to server nodes at any poin int time.
	// If there are 16 nodes in the cluster and maxConcurrentNodes is 8, then queries
	// will be made to 8 nodes in parallel.  When a query completes, a new query will
	// be issued until all 16 nodes have been queried.
	// Default (0) is to issue requests to all server nodes in parallel.
	MaxConcurrentNodes int

	// Number of records to place in queue before blocking.
	// Records received from multiple server nodes will be placed in a queue.
	// A separate goroutine consumes these records in parallel.
	// If the queue is full, the producer goroutines will block until records are consumed.
	RecordQueueSize int //= 5000

	// Indicates if bin data is retrieved. If false, only record digests are retrieved.
	IncludeBinData bool //= true;

	// Blocks until on-going migrations are over
	WaitUntilMigrationsAreOver bool //=false
}

MultiPolicy contains parameters for policy attributes used in query and scan operations.

func NewMultiPolicy added in v1.0.2 

func NewMultiPolicy() *MultiPolicy

NewMultiPolicy initializes a MultiPolicy instance with default values.

type Node 

type Node struct {
	// contains filtered or unexported fields
}

Node represents an Aerospike Database Server Node

func (*Node) Close 

func (nd *Node) Close()

Close marks node as inactive and closes all of its pooled connections.

func (*Node) Equals 

func (nd *Node) Equals(other *Node) bool

Equals compares equality of two nodes based on their names.

func (*Node) GetAliases 

func (nd *Node) GetAliases() []*Host

GetAliases returns node aliases.

func (*Node) GetConnection 

func (nd *Node) GetConnection(timeout time.Duration) (conn *Connection, err error)

GetConnection gets a connection to the node. If no pooled connection is available, a new connection will be created, unless ClientPolicy.MaxQueueSize number of connections are already created. This method will retry to retrieve a connection in case the connection pool is empty, until timeout is reached.

func (*Node) GetHost 

func (nd *Node) GetHost() *Host

GetHost retrieves host for the node.

func (*Node) GetName 

func (nd *Node) GetName() string

GetName returns node name.

func (*Node) InvalidateConnection added in v1.6.0 

func (nd *Node) InvalidateConnection(conn *Connection)

InvalidateConnection closes and discards a connection from the pool.

func (*Node) IsActive 

func (nd *Node) IsActive() bool

IsActive Checks if the node is active.

func (*Node) MigrationInProgress added in v1.0.1 

func (nd *Node) MigrationInProgress() (bool, error)

MigrationInProgress determines if the node is participating in a data migration

func (*Node) PutConnection 

func (nd *Node) PutConnection(conn *Connection)

PutConnection puts back a connection to the pool. If connection pool is full, the connection will be closed and discarded.

func (*Node) Refresh 

func (nd *Node) Refresh(peers *peers) error

Refresh requests current status from server node, and updates node with the result.

func (*Node) RequestInfo added in v1.12.0 

func (nd *Node) RequestInfo(name ...string) (map[string]string, error)

RequestInfo gets info values by name from the specified database server node.

func (*Node) String 

func (nd *Node) String() string

String implements stringer interface

func (*Node) WaitUntillMigrationIsFinished added in v1.0.1 

func (nd *Node) WaitUntillMigrationIsFinished(timeout time.Duration) (err error)

WaitUntillMigrationIsFinished will block until migration operations are finished.

type NodeError added in v1.0.1 

type NodeError struct {
	// contains filtered or unexported fields
}

NodeError is a type to encapsulate the node that the error occurred in.

func (*NodeError) Err added in v1.24.0 

func (ne *NodeError) Err() error

Err returns the error

func (*NodeError) Node added in v1.0.1 

func (ne *NodeError) Node() *Node

Node returns the node where the error occurred.

type NullValue 

type NullValue struct{}

NullValue is an empty value.

func NewNullValue added in v1.0.1 

func NewNullValue() NullValue

NewNullValue generates a NullValue instance.

func (NullValue) GetObject 

func (vl NullValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (NullValue) GetType 

func (vl NullValue) GetType() int

GetType returns wire protocol value type.

func (NullValue) String 

func (vl NullValue) String() string

type Operation 

type Operation struct {
	// contains filtered or unexported fields
}

Operation contains operation definition. This struct is used in client's operate() method.

func AddOp added in v1.0.1 

func AddOp(bin *Bin) *Operation

AddOp creates integer add database operation.

func AppendOp added in v1.0.1 

func AppendOp(bin *Bin) *Operation

AppendOp creates string append database operation.

func GetHeaderOp added in v1.0.1 

func GetHeaderOp() *Operation

GetHeaderOp creates read record header database operation.

func GetOp added in v1.0.1 

func GetOp() *Operation

GetOp creates read all record bins database operation.

func GetOpForBin added in v1.0.1 

func GetOpForBin(binName string) *Operation

GetOpForBin creates read bin database operation.

func ListAppendOp added in v1.9.0 

func ListAppendOp(binName string, values ...interface{}) *Operation

ListAppendOp creates a list append operation. Server appends values to end of list bin. Server returns list size on bin name. It will panic is no values have been passed.

func ListClearOp added in v1.9.0 

func ListClearOp(binName string) *Operation

ListClearOp creates a list clear operation. Server removes all items in list bin. Server does not return a result by default.

func ListGetOp added in v1.9.0 

func ListGetOp(binName string, index int) *Operation

ListGetOp creates a list get operation. Server returns item at specified index in list bin.

func ListGetRangeFromOp added in v1.11.0 

func ListGetRangeFromOp(binName string, index int) *Operation

ListGetRangeFromOp creates a list get range operation. Server returns items starting at specified index to the end of list.

func ListGetRangeOp added in v1.9.0 

func ListGetRangeOp(binName string, index int, count int) *Operation

ListGetRangeOp creates a list get range operation. Server returns "count" items starting at specified index in list bin.

func ListIncrementOp added in v1.29.0 

func ListIncrementOp(binName string, index int, value interface{}) *Operation

ListIncrementOp creates a list increment operation. Server increments list[index] by value. Value should be integer(IntegerValue, LongValue) or float(FloatValue). Server returns list[index] after incrementing.

func ListInsertOp added in v1.9.0 

func ListInsertOp(binName string, index int, values ...interface{}) *Operation

ListInsertOp creates a list insert operation. Server inserts value to specified index of list bin. Server returns list size on bin name. It will panic is no values have been passed.

func ListPopOp added in v1.9.0 

func ListPopOp(binName string, index int) *Operation

ListPopOp creates list pop operation. Server returns item at specified index and removes item from list bin.

func ListPopRangeFromOp added in v1.11.0 

func ListPopRangeFromOp(binName string, index int) *Operation

ListPopRangeFromOp creates a list pop range operation. Server returns items starting at specified index to the end of list and removes items from list bin.

func ListPopRangeOp added in v1.9.0 

func ListPopRangeOp(binName string, index int, count int) *Operation

ListPopRangeOp creates a list pop range operation. Server returns items starting at specified index and removes items from list bin.

func ListRemoveOp added in v1.9.0 

func ListRemoveOp(binName string, index int) *Operation

ListRemoveOp creates a list remove operation. Server removes item at specified index from list bin. Server returns number of items removed.

func ListRemoveRangeFromOp added in v1.11.0 

func ListRemoveRangeFromOp(binName string, index int) *Operation

ListRemoveRangeFromOp creates a list remove range operation. Server removes all items starting at specified index to the end of list. Server returns number of items removed.

func ListRemoveRangeOp added in v1.9.0 

func ListRemoveRangeOp(binName string, index int, count int) *Operation

ListRemoveRangeOp creates a list remove range operation. Server removes "count" items starting at specified index from list bin. Server returns number of items removed.

func ListSetOp added in v1.9.0 

func ListSetOp(binName string, index int, value interface{}) *Operation

ListSetOp creates a list set operation. Server sets item value at specified index in list bin. Server does not return a result by default.

func ListSizeOp added in v1.9.0 

func ListSizeOp(binName string) *Operation

ListSizeOp creates a list size operation. Server returns size of list on bin name.

func ListTrimOp added in v1.9.0 

func ListTrimOp(binName string, index int, count int) *Operation

ListTrimOp creates a list trim operation. Server removes items in list bin that do not fall into range specified by index and count range. If the range is out of bounds, then all items will be removed. Server returns number of elemts that were removed.

func MapClearOp added in v1.16.0 

func MapClearOp(binName string) *Operation

MapClearOp creates map clear operation. Server removes all items in map. Server returns null.

func MapDecrementOp added in v1.16.0 

func MapDecrementOp(policy *MapPolicy, binName string, key interface{}, decr interface{}) *Operation

MapDecrementOp creates map decrement operation. Server decrements values by decr for all items identified by key and returns final result. Valid only for numbers.

The required map policy dictates the type of map to create when it does not exist. The map policy also specifies the mode used when writing items to the map.

func MapGetByIndexOp added in v1.16.0 

func MapGetByIndexOp(binName string, index int, returnType mapReturnType) *Operation

MapGetByIndexOp creates map get by index operation. Server selects map item identified by index and returns selected data specified by returnType.

func MapGetByIndexRangeCountOp added in v1.16.0 

func MapGetByIndexRangeCountOp(binName string, index int, count int, returnType mapReturnType) *Operation

MapGetByIndexRangeCountOp creates map get by index range operation. Server selects "count" map items starting at specified index and returns selected data specified by returnType.

func MapGetByIndexRangeOp added in v1.16.0 

func MapGetByIndexRangeOp(binName string, index int, returnType mapReturnType) *Operation

MapGetByIndexRangeOp creates map get by index range operation. Server selects map items starting at specified index to the end of map and returns selected data specified by returnType.

func MapGetByKeyOp added in v1.16.0 

func MapGetByKeyOp(binName string, key interface{}, returnType mapReturnType) *Operation

MapGetByKeyOp creates map get by key operation. Server selects map item identified by key and returns selected data specified by returnType.

func MapGetByKeyRangeOp added in v1.16.0 

func MapGetByKeyRangeOp(binName string, keyBegin interface{}, keyEnd interface{}, returnType mapReturnType) *Operation

MapGetByKeyRangeOp creates map get by key range operation. Server selects map items identified by key range (keyBegin inclusive, keyEnd exclusive). If keyBegin is null, the range is less than keyEnd. If keyEnd is null, the range is greater than equal to keyBegin.

Server returns selected data specified by returnType.

func MapGetByRankOp added in v1.16.0 

func MapGetByRankOp(binName string, rank int, returnType mapReturnType) *Operation

MapGetByRankOp creates map get by rank operation. Server selects map item identified by rank and returns selected data specified by returnType.

func MapGetByRankRangeCountOp added in v1.16.0 

func MapGetByRankRangeCountOp(binName string, rank int, count int, returnType mapReturnType) *Operation

MapGetByRankRangeCountOp creates map get by rank range operation. Server selects "count" map items starting at specified rank and returns selected data specified by returnType.

func MapGetByRankRangeOp added in v1.16.0 

func MapGetByRankRangeOp(binName string, rank int, returnType mapReturnType) *Operation

MapGetByRankRangeOp creates map get by rank range operation. Server selects map items starting at specified rank to the last ranked item and returns selected data specified by returnType.

func MapGetByValueOp added in v1.16.0 

func MapGetByValueOp(binName string, value interface{}, returnType mapReturnType) *Operation

MapGetByValueOp creates map get by value operation. Server selects map items identified by value and returns selected data specified by returnType.

func MapGetByValueRangeOp added in v1.16.0 

func MapGetByValueRangeOp(binName string, valueBegin interface{}, valueEnd interface{}, returnType mapReturnType) *Operation

MapGetByValueRangeOp creates map get by value range operation. Server selects map items identified by value range (valueBegin inclusive, valueEnd exclusive) If valueBegin is null, the range is less than valueEnd. If valueEnd is null, the range is greater than equal to valueBegin.

Server returns selected data specified by returnType.

func MapIncrementOp added in v1.16.0 

func MapIncrementOp(policy *MapPolicy, binName string, key interface{}, incr interface{}) *Operation

MapIncrementOp creates map increment operation. Server increments values by incr for all items identified by key and returns final result. Valid only for numbers.

The required map policy dictates the type of map to create when it does not exist. The map policy also specifies the mode used when writing items to the map.

func MapPutItemsOp added in v1.16.0 

func MapPutItemsOp(policy *MapPolicy, binName string, amap map[interface{}]interface{}) *Operation

MapPutItemsOp creates map put items operation Server writes each map item to map bin and returns map size.

The required map policy dictates the type of map to create when it does not exist. The map policy also specifies the mode used when writing items to the map.

func MapPutOp added in v1.16.0 

func MapPutOp(policy *MapPolicy, binName string, key interface{}, value interface{}) *Operation

MapPutOp creates map put operation. Server writes key/value item to map bin and returns map size.

The required map policy dictates the type of map to create when it does not exist. The map policy also specifies the mode used when writing items to the map.

func MapRemoveByIndexOp added in v1.16.0 

func MapRemoveByIndexOp(binName string, index int, returnType mapReturnType) *Operation

MapRemoveByIndexOp creates map remove operation. Server removes map item identified by index and returns removed data specified by returnType.

func MapRemoveByIndexRangeCountOp added in v1.16.0 

func MapRemoveByIndexRangeCountOp(binName string, index int, count int, returnType mapReturnType) *Operation

MapRemoveByIndexRangeCountOp creates map remove operation. Server removes "count" map items starting at specified index and returns removed data specified by returnType.

func MapRemoveByIndexRangeOp added in v1.16.0 

func MapRemoveByIndexRangeOp(binName string, index int, returnType mapReturnType) *Operation

MapRemoveByIndexRangeOp creates map remove operation. Server removes map items starting at specified index to the end of map and returns removed data specified by returnType.

func MapRemoveByKeyListOp added in v1.16.0 

func MapRemoveByKeyListOp(binName string, keys []interface{}, returnType mapReturnType) *Operation

MapRemoveByKeyListOp creates map remove operation. Server removes map items identified by keys and returns removed data specified by returnType.

func MapRemoveByKeyOp added in v1.16.0 

func MapRemoveByKeyOp(binName string, key interface{}, returnType mapReturnType) *Operation

MapRemoveByKeyOp creates map remove operation. Server removes map item identified by key and returns removed data specified by returnType.

func MapRemoveByKeyRangeOp added in v1.16.0 

func MapRemoveByKeyRangeOp(binName string, keyBegin interface{}, keyEnd interface{}, returnType mapReturnType) *Operation

MapRemoveByKeyRangeOp creates map remove operation. Server removes map items identified by key range (keyBegin inclusive, keyEnd exclusive). If keyBegin is null, the range is less than keyEnd. If keyEnd is null, the range is greater than equal to keyBegin.

Server returns removed data specified by returnType.

func MapRemoveByRankOp added in v1.16.0 

func MapRemoveByRankOp(binName string, rank int, returnType mapReturnType) *Operation

MapRemoveByRankOp creates map remove operation. Server removes map item identified by rank and returns removed data specified by returnType.

func MapRemoveByRankRangeCountOp added in v1.16.0 

func MapRemoveByRankRangeCountOp(binName string, rank int, count int, returnType mapReturnType) *Operation

MapRemoveByRankRangeCountOp creates map remove operation. Server removes "count" map items starting at specified rank and returns removed data specified by returnType.

func MapRemoveByRankRangeOp added in v1.16.0 

func MapRemoveByRankRangeOp(binName string, rank int, returnType mapReturnType) *Operation

MapRemoveByRankRangeOp creates map remove operation. Server removes map items starting at specified rank to the last ranked item and returns removed data specified by returnType.

func MapRemoveByValueListOp added in v1.16.0 

func MapRemoveByValueListOp(binName string, values []interface{}, returnType mapReturnType) *Operation

MapRemoveByValueListOp creates map remove operation. Server removes map items identified by values and returns removed data specified by returnType.

func MapRemoveByValueOp added in v1.16.0 

func MapRemoveByValueOp(binName string, value interface{}, returnType mapReturnType) *Operation

MapRemoveByValueOp creates map remove operation. Server removes map items identified by value and returns removed data specified by returnType.

func MapRemoveByValueRangeOp added in v1.16.0 

func MapRemoveByValueRangeOp(binName string, valueBegin interface{}, valueEnd interface{}, returnType mapReturnType) *Operation

MapRemoveByValueRangeOp creates map remove operation. Server removes map items identified by value range (valueBegin inclusive, valueEnd exclusive). If valueBegin is null, the range is less than valueEnd. If valueEnd is null, the range is greater than equal to valueBegin.

Server returns removed data specified by returnType.

func MapSetPolicyOp added in v1.16.0 

func MapSetPolicyOp(policy *MapPolicy, binName string) *Operation

MapSetPolicyOp creates set map policy operation. Server sets map policy attributes. Server returns null.

The required map policy attributes can be changed after the map is created.

func MapSizeOp added in v1.16.0 

func MapSizeOp(binName string) *Operation

MapSizeOp creates map size operation. Server returns size of map.

func PrependOp added in v1.0.1 

func PrependOp(bin *Bin) *Operation

PrependOp creates string prepend database operation.

func PutOp added in v1.0.1 

func PutOp(bin *Bin) *Operation

PutOp creates set database operation.

func TouchOp added in v1.0.1 

func TouchOp() *Operation

TouchOp creates touch database operation.

type OperationSubType added in v1.27.0 

type OperationSubType *int

type OperationType 

type OperationType *struct {
	// contains filtered or unexported fields
}

OperationType determines operation type 

var (
	READ OperationType = &struct{ op byte }{1}

	WRITE      OperationType = &struct{ op byte }{2}
	CDT_READ   OperationType = &struct{ op byte }{3}
	CDT_MODIFY OperationType = &struct{ op byte }{4}
	MAP_READ   OperationType = &struct{ op byte }{3}
	MAP_MODIFY OperationType = &struct{ op byte }{4}
	ADD        OperationType = &struct{ op byte }{5}
	APPEND     OperationType = &struct{ op byte }{9}
	PREPEND    OperationType = &struct{ op byte }{10}
	TOUCH      OperationType = &struct{ op byte }{11}
)

Valid OperationType values that can be used to create custom Operations. The names are self-explanatory.

type Partition 

type Partition struct {
	Namespace   string
	PartitionId int
}

Partition encapsulates partition information.

func NewPartition 

func NewPartition(namespace string, partitionId int) *Partition

NewPartition generates a partition instance.

func NewPartitionByKey 

func NewPartitionByKey(key *Key) *Partition

NewPartitionByKey initializes a partition and determines the Partition Id from key digest automatically.

func (*Partition) Equals 

func (ptn *Partition) Equals(other *Partition) bool

Equals checks equality of two partitions.

func (*Partition) String 

func (ptn *Partition) String() string

String implements the Stringer interface.

type Policy 

type Policy interface {
	// Retrieves BasePolicy
	GetBasePolicy() *BasePolicy
}

Policy Interface

type PredExp added in v1.29.0 

type PredExp interface {
	String() string
	// contains filtered or unexported methods
}

type Priority 

type Priority int

Priority of operations on database server. 

const (

	// DEFAULT determines that the server defines the priority.
	DEFAULT Priority = iota

	// LOW determines that the server should run the operation in a background thread.
	LOW

	// MEDIUM determines that the server should run the operation at medium priority.
	MEDIUM

	// HIGH determines that the server should run the operation at the highest priority.
	HIGH
)

type Privilege added in v1.24.0 

type Privilege struct {
	// Role
	Code privilegeCode

	// Namespace determines namespace scope. Apply permission to this namespace only.
	// If namespace is zero value, the privilege applies to all namespaces.
	Namespace string

	// Set name scope. Apply permission to this set within namespace only.
	// If set is zero value, the privilege applies to all sets within namespace.
	SetName string
}

Privilege determines user access granularity.

type QueryPolicy 

type QueryPolicy struct {
	*MultiPolicy
}

QueryPolicy encapsulates parameters for policy attributes used in query operations.

func NewQueryPolicy added in v1.0.1 

func NewQueryPolicy() *QueryPolicy

NewQueryPolicy generates a new QueryPolicy instance with default values.

type Record 

type Record struct {
	// Key is the record's key.
	// Might be empty, or may only consist of digest value.
	Key *Key

	// Node from which the Record is originating from.
	Node *Node

	// Bins is the map of requested name/value bins.
	Bins BinMap

	// Generation shows record modification count.
	Generation uint32

	// Expiration is TTL (Time-To-Live).
	// Number of seconds until record expires.
	Expiration uint32
}

Record is the container struct for database records. Records are equivalent to rows.

func (*Record) String 

func (rc *Record) String() string

String implements the Stringer interface. Returns string representation of record.

type RecordExistsAction 

type RecordExistsAction int

RecordExistsAction determines how to handle writes when the record already exists. 

const (

	// UPDATE means: Create or update record.
	// Merge write command bins with existing bins.
	UPDATE RecordExistsAction = iota

	// UPDATE_ONLY means: Update record only. Fail if record does not exist.
	// Merge write command bins with existing bins.
	UPDATE_ONLY

	// REPLACE means: Create or replace record.
	// Delete existing bins not referenced by write command bins.
	// Supported by Aerospike 2 server versions >= 2.7.5 and
	// Aerospike 3 server versions >= 3.1.6.
	REPLACE

	// REPLACE_ONLY means: Replace record only. Fail if record does not exist.
	// Delete existing bins not referenced by write command bins.
	// Supported by Aerospike 2 server versions >= 2.7.5 and
	// Aerospike 3 server versions >= 3.1.6.
	REPLACE_ONLY

	// CREATE_ONLY means: Create only. Fail if record exists.
	CREATE_ONLY
)

type Recordset added in v1.0.1 

type Recordset struct {

	// Records is a channel on which the resulting records will be sent back.
	// NOTE: Do not use Records directly. Range on channel returned by Results() instead.
	// Will be unexported in the future
	Records chan *Record
	// contains filtered or unexported fields
}

Recordset encapsulates the result of Scan and Query commands.

func (*Recordset) Close added in v1.0.1 

func (rcs *Recordset) Close() error

Close all streams from different nodes. A successful close return nil, subsequent calls to the method will return ErrRecordsetClosed.

func (*Recordset) IsActive added in v1.0.1 

func (rcs *Recordset) IsActive() bool

IsActive returns true if the operation hasn't been finished or cancelled.

func (*Recordset) Read added in v1.14.0 

func (rcs *Recordset) Read() (record *Record, err error)

Read reads the next record from the Recordset. If the Recordset has been closed, it returns ErrRecordsetClosed.

func (*Recordset) Results added in v1.4.0 

func (rcs *Recordset) Results() <-chan *Result

Results returns a new receive-only channel with the results of the Scan/Query. This is a more idiomatic approach to the iterator pattern in getting the results back from the recordset, and doesn't require the user to write the ugly select in their code. Result contains a Record and an error reference.

Example: 

recordset, err := client.ScanAll(nil, namespace, set)
handleError(err)
for res := range recordset.Results() {
  if res.Err != nil {
    // handle error here
  } else {
    // process record here
    fmt.Println(res.Record.Bins)
  }
}

func (*Recordset) TaskId added in v1.17.1 

func (os *Recordset) TaskId() uint64

TaskId returns the transactionId/jobId sent to the server for this recordset.

type RegisterTask added in v1.0.1 

type RegisterTask struct {
	// contains filtered or unexported fields
}

RegisterTask is used to poll for UDF registration completion.

func NewRegisterTask added in v1.0.1 

func NewRegisterTask(cluster *Cluster, packageName string) *RegisterTask

NewRegisterTask initializes a RegisterTask with fields needed to query server nodes.

func (*RegisterTask) IsDone added in v1.0.1 

func (tskr *RegisterTask) IsDone() (bool, error)

IsDone will query all nodes for task completion status.

func (*RegisterTask) OnComplete added in v1.0.1 

func (tskr *RegisterTask) OnComplete() chan error

OnComplete returns a channel that will be closed as soon as the task is finished. If an error is encountered during operation, an error will be sent on the channel.

type RemoveTask added in v1.0.1 

type RemoveTask struct {
	// contains filtered or unexported fields
}

RemoveTask is used to poll for UDF registration completion.

func NewRemoveTask added in v1.0.1 

func NewRemoveTask(cluster *Cluster, packageName string) *RemoveTask

NewRemoveTask initializes a RemoveTask with fields needed to query server nodes.

func (*RemoveTask) IsDone added in v1.0.1 

func (tskr *RemoveTask) IsDone() (bool, error)

IsDone will query all nodes for task completion status.

func (*RemoveTask) OnComplete added in v1.0.1 

func (tskr *RemoveTask) OnComplete() chan error

OnComplete returns a channel that will be closed as soon as the task is finished. If an error is encountered during operation, an error will be sent on the channel.

type ReplicaPolicy added in v1.17.0 

type ReplicaPolicy int

ReplicaPolicy defines type of node partition targeted by read commands. 

const (
	// MASTER reads from node containing key's master partition.
	// This is the default behavior.
	MASTER ReplicaPolicy = iota

	// MASTER_PROLES Distributes reads across nodes containing key's master and replicated partitions
	// in round-robin fashion.  This option requires ClientPolicy.RequestProleReplicas
	// to be enabled in order to function properly.
	MASTER_PROLES

	// Distribute reads across all nodes in cluster in round-robin fashion.
	// This option is useful when the replication factor equals the number
	// of nodes in the cluster and the overhead of requesting proles is not desired.
	RANDOM

	// SEQUENCE Tries node containing master partition first.
	// If connection fails, all commands try nodes containing replicated partitions.
	// If socketTimeout is reached, reads also try nodes containing replicated partitions,
	// but writes remain on master node.
	//
	// This option requires ClientPolicy.RequestProleReplicas to be enabled
	// in order to function properly.
	SEQUENCE
)

type Result added in v1.6.0 

type Result struct {
	Record *Record
	Err    error
}

func (*Result) String added in v1.11.0 

func (res *Result) String() string

String implements the Stringer interface

type Role added in v1.3.0 

type Role struct {
	Name string

	Privileges []Privilege
}

Role allows granular access to database entities for users.

type ScanPolicy 

type ScanPolicy struct {
	*MultiPolicy

	// ScanPercent determines percent of data to scan.
	// Valid integer range is 1 to 100.
	// Default is 100.
	ScanPercent int //= 100;

	// ServerSocketTimeout defines maximum time that the server will before droping an idle socket.
	// Zero means there is no socket timeout.
	// Default is 10 seconds.
	ServerSocketTimeout time.Duration //= 10 seconds

	// ConcurrentNodes determines how to issue scan requests (in parallel or sequentially).
	ConcurrentNodes bool //= true;

	// Include large data type bin values in addition to large data type bin names.
	// If false, LDT bin names will be returned, but LDT bin values will be empty.
	// If true,  LDT bin names and the entire LDT bin values will be returned.
	// Warning: LDT values may consume huge of amounts of memory depending on LDT size.
	// Warning: LDT as a feature is deprecated on the servers v3.15+ and will be removed from the client in 2018.
	IncludeLDT bool

	// FailOnClusterChange determines scan termination if cluster is in fluctuating state.
	FailOnClusterChange bool
}

ScanPolicy encapsulates parameters used in scan operations.

func NewScanPolicy added in v1.0.1 

func NewScanPolicy() *ScanPolicy

NewScanPolicy creates a new ScanPolicy instance with default values.

type Statement added in v1.0.1 

type Statement struct {
	// Namespace determines query Namespace
	Namespace string

	// SetName determines query Set name (Optional)
	SetName string

	// IndexName determines query index name (Optional)
	// If not set, the server will determine the index from the filter's bin name.
	IndexName string

	// BinNames detemines bin names (optional)
	BinNames []string

	// Filters determine query filters (Optional)
	// Currently, only one filter is allowed by the server on a secondary index lookup.
	// If multiple filters are necessary, see QueryFilter example for a workaround.
	// QueryFilter demonstrates how to add additional filters in an user-defined
	// aggregation function.
	Filters []*Filter

	// TaskId determines query task id. (Optional)
	TaskId uint64
	// contains filtered or unexported fields
}

Statement encapsulates query statement parameters.

func NewStatement added in v1.0.1 

func NewStatement(ns string, set string, binNames ...string) *Statement

NewStatement initializes a new Statement instance.

func (*Statement) Addfilter added in v1.0.1 

func (stmt *Statement) Addfilter(filter *Filter) error

Addfilter adds a filter to the statement. Aerospike Server currently only supports using a single filter per statement/query.

func (*Statement) IsScan added in v1.0.1 

func (stmt *Statement) IsScan() bool

IsScan determines is the Statement is a full namespace/set scan or a selective Query.

func (*Statement) SetAggregateFunction added in v1.0.1 

func (stmt *Statement) SetAggregateFunction(packageName string, functionName string, functionArgs []Value, returnData bool)

SetAggregateFunction sets aggregation function parameters. This function will be called on both the server and client for each selected item.

func (*Statement) SetPredExp added in v1.26.0 

func (stmt *Statement) SetPredExp(predexp ...PredExp) error

SetPredExp sets low-level predicate expressions for the statement in postfix notation. Supported only by Aerospike Server v3.12+. Predicate expression filters are applied on the query results on the server. Predicate expression filters may occur on any bin in the record. To learn how to use this API, consult predexp_test.go file.

Postfix notation is described here: http://wiki.c2.com/?PostfixNotation

Example: (c >= 11 and c <= 20) or (d > 3 and (d < 5)

stmt.SetPredExp( 

NewPredExpIntegerValue(11),
NewPredExpIntegerBin("c"),
NewPredExpIntegerGreaterEq(),
NewPredExpIntegerValue(20),
NewPredExpIntegerBin("c"),
NewPredExpIntegerLessEq(),
NewPredExpAnd(2),
NewPredExpIntegerValue(3),
NewPredExpIntegerBin("d"),
NewPredExpIntegerGreater(),
NewPredExpIntegerValue(5),
NewPredExpIntegerBin("d"),
NewPredExpIntegerLess(),
NewPredExpAnd(2),
NewPredExpOr(2)

);

// Record last update time > 2017-01-15 stmt.SetPredExp( 

NewIntegerValue(time.Date(2017, 0, 15, 0, 0, 0, 0, time.UTC).UnixNano()),
NewPredExpLastUpdate(),
NewPredExpIntegerGreater(),

);

type StringValue 

type StringValue string

StringValue encapsulates a string value.

func NewStringValue 

func NewStringValue(value string) StringValue

NewStringValue generates a StringValue instance.

func (StringValue) GetObject 

func (vl StringValue) GetObject() interface{}

GetObject returns original value as an interface{}.

func (StringValue) GetType 

func (vl StringValue) GetType() int

GetType returns wire protocol value type.

func (StringValue) String 

func (vl StringValue) String() string

String implements Stringer interface.

type Task added in v1.0.1 

type Task interface {
	IsDone() (bool, error)

	OnComplete() chan error
	// contains filtered or unexported methods
}

Task interface defines methods for asynchronous tasks.

type UDF added in v1.0.1 

type UDF struct {
	// Filename of the UDF
	Filename string
	// Hash digest of the UDF
	Hash string
	// Language of UDF
	Language Language
}

UDF carries information about UDFs on the server

type UserRoles added in v1.3.0 

type UserRoles struct {
	// User name.
	User string

	// Roles is a list of assigned roles.
	Roles []string
}

UserRoles contains information about a user.

type Value 

type Value interface {

	// GetType returns wire protocol value type.
	GetType() int

	// GetObject returns original value as an interface{}.
	GetObject() interface{}

	// String implements Stringer interface.
	String() string
	// contains filtered or unexported methods
}

Value interface is used to efficiently serialize objects into the wire protocol.

func NewValue 

func NewValue(v interface{}) Value

NewValue generates a new Value object based on the type. If the type is not supported, NewValue will panic. This method is a convenience method, and should not be used when absolute performance is required unless for the reason mentioned below.

If you have custom maps or slices like: 

type MyMap map[primitive1]primitive2, eg: map[int]string

or 

type MySlice []primitive, eg: []float64

cast them to their primitive type when passing them to this method: 

v := NewValue(map[int]string(myVar))
v := NewValue([]float64(myVar))

This way you will avoid hitting reflection. To completely avoid reflection in the library, use the build tag: as_performance while building your program.

func ToValueSlice added in v1.9.0 

func ToValueSlice(array []interface{}) []Value

ToValueSlice converts a []interface{} to []Value. It will panic if any of array element types are not supported.

type ValueArray 

type ValueArray []Value

ValueArray encapsulates an array of Value. Supported by Aerospike 3 servers only.

func NewValueArray 

func NewValueArray(array []Value) *ValueArray

NewValueArray generates a ValueArray instance.

func ToValueArray added in v1.0.1 

func ToValueArray(array []interface{}) *ValueArray

ToValueArray converts a []interface{} to a ValueArray type. It will panic if any of array element types are not supported.

func (ValueArray) GetObject 

func (va ValueArray) GetObject() interface{}

GetObject returns original value as an interface{}.

func (ValueArray) GetType 

func (va ValueArray) GetType() int

GetType returns wire protocol value type.

func (ValueArray) String 

func (va ValueArray) String() string

String implements Stringer interface.

type WritePolicy 

type WritePolicy struct {
	BasePolicy

	// RecordExistsAction qualifies how to handle writes where the record already exists.
	RecordExistsAction RecordExistsAction //= RecordExistsAction.UPDATE;

	// GenerationPolicy qualifies how to handle record writes based on record generation. The default (NONE)
	// indicates that the generation is not used to restrict writes.
	GenerationPolicy GenerationPolicy //= GenerationPolicy.NONE;

	// Desired consistency guarantee when committing a transaction on the server. The default
	// (COMMIT_ALL) indicates that the server should wait for master and all replica commits to
	// be successful before returning success to the client.
	CommitLevel CommitLevel //= COMMIT_ALL

	// Generation determines expected generation.
	// Generation is the number of times a record has been
	// modified (including creation) on the server.
	// If a write operation is creating a record, the expected generation would be 0.
	Generation uint32

	// Expiration determines record expiration in seconds. Also known as TTL (Time-To-Live).
	// Seconds record will live before being removed by the server.
	// Expiration values:
	// TTLServerDefault (0): Default to namespace configuration variable "default-ttl" on the server.
	// TTLDontExpire (MaxUint32): Never expire for Aerospike 2 server versions >= 2.7.2 and Aerospike 3 server
	// TTLDontUpdate (MaxUint32 - 1): Do not change ttl when record is written. Supported by Aerospike server versions >= 3.10.1
	// > 0: Actual expiration in seconds.
	Expiration uint32

	// Send user defined key in addition to hash digest on a record put.
	// If the key is sent on a write, the key will be stored with the record on
	// the server.
	// The default is to not send the user defined key.
	SendKey bool

	// RespondPerEachOp defines for client.Operate() method, return a result for every operation.
	// Some list operations do not return results by default (ListClearOp() for example).
	// This can sometimes make it difficult to determine the desired result offset in the returned
	// bin's result list.
	//
	// Setting RespondPerEachOp to true makes it easier to identify the desired result offset
	// (result offset equals bin's operate sequence). This only makes sense when multiple list
	// operations are used in one operate call and some of those operations do not return results
	// by default.
	RespondPerEachOp bool

	// DurableDelete leaves a tombstone for the record if the transaction results in a record deletion.
	// This prevents deleted records from reappearing after node failures.
	// Valid for Aerospike Server Enterprise Edition 4+ only.
	DurableDelete bool
}

WritePolicy encapsulates parameters for policy attributes used in write operations. This object is passed into methods where database writes can occur.

func NewWritePolicy 

func NewWritePolicy(generation, expiration uint32) *WritePolicy

NewWritePolicy initializes a new WritePolicy instance with default parameters.

Source Files

View all Source files

Directories

Path Synopsis
* Copyright 2012-2016 Aerospike, Inc.
 * Copyright 2012-2016 Aerospike, Inc.
get
put
query-aggregate
shared
internal
lua
lua/resources
pkg
bcrypt
ripemd160
Package ripemd160 implements the RIPEMD-160 hash algorithm.
 Package ripemd160 implements the RIPEMD-160 hash algorithm.
tools
asinfo
benchmark
cli
atomic
particle_type
rand
buffer

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