leveldb

Documentation

Index

• func NewBatch() *batch
• type DB
  • func NewDB(path string, batchDelaySeconds int, maxBatchSize int, maxOpenFiles int) (s *DB, err error)
  • func (s *DB) Close() error
  • func (s *DB) Destroy() error
  • func (s *DB) DestroyClosed() error
  • func (s *DB) Get(key []byte) ([]byte, error)
  • func (s *DB) Has(key []byte) error
  • func (s *DB) IsInterfaceNil() bool
  • func (s *DB) Put(key, val []byte) error
  • func (bldb DB) RangeKeys(handler func(key []byte, value []byte) bool)
  • func (s *DB) Remove(key []byte) error
• type SerialDB
  • func NewSerialDB(path string, batchDelaySeconds int, maxBatchSize int, maxOpenFiles int) (s *SerialDB, err error)
  • func (s *SerialDB) Close() error
  • func (s *SerialDB) Destroy() error
  • func (s *SerialDB) DestroyClosed() error
  • func (s *SerialDB) Get(key []byte) ([]byte, error)
  • func (s *SerialDB) Has(key []byte) error
  • func (s *SerialDB) IsInterfaceNil() bool
  • func (s *SerialDB) Put(key, val []byte) error
  • func (bldb SerialDB) RangeKeys(handler func(key []byte, value []byte) bool)
  • func (s *SerialDB) Remove(key []byte) error

Functions

func NewBatch

func NewBatch() *batch

NewBatch creates a batch

Types

type DB

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

DB holds a pointer to the leveldb database and the path to where it is stored.

func NewDB

func NewDB(path string, batchDelaySeconds int, maxBatchSize int, maxOpenFiles int) (s *DB, err error)

NewDB is a constructor for the leveldb persister It creates the files in the location given as parameter

func (*DB) Close

func (s *DB) Close() error

Close closes the files/resources associated to the storage medium

func (*DB) Destroy

func (s *DB) Destroy() error

Destroy removes the storage medium stored data

func (*DB) DestroyClosed

func (s *DB) DestroyClosed() error

DestroyClosed removes the already closed storage medium stored data

func (*DB) Get

func (s *DB) Get(key []byte) ([]byte, error)

Get returns the value associated to the key

func (*DB) Has

func (s *DB) Has(key []byte) error

Has returns nil if the given key is present in the persistence medium

func (*DB) IsInterfaceNil

func (s *DB) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*DB) Put

func (s *DB) Put(key, val []byte) error

Put adds the value to the (key, val) storage medium

func (DB) RangeKeys

func (bldb DB) RangeKeys(handler func(key []byte, value []byte) bool)

RangeKeys will call the handler function for each (key, value) pair If the handler returns true, the iteration will continue, otherwise will stop

func (*DB) Remove

func (s *DB) Remove(key []byte) error

Remove removes the data associated to the given key

type SerialDB

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

SerialDB holds a pointer to the leveldb database and the path to where it is stored.

func NewSerialDB

func NewSerialDB(path string, batchDelaySeconds int, maxBatchSize int, maxOpenFiles int) (s *SerialDB, err error)

NewSerialDB is a constructor for the leveldb persister It creates the files in the location given as parameter

func (*SerialDB) Close

func (s *SerialDB) Close() error

Close closes the files/resources associated to the storage medium

func (*SerialDB) Destroy

func (s *SerialDB) Destroy() error

Destroy removes the storage medium stored data

func (*SerialDB) DestroyClosed

func (s *SerialDB) DestroyClosed() error

DestroyClosed removes the already closed storage medium stored data

func (*SerialDB) Get

func (s *SerialDB) Get(key []byte) ([]byte, error)

Get returns the value associated to the key

func (*SerialDB) Has

func (s *SerialDB) Has(key []byte) error

Has returns nil if the given key is present in the persistence medium

func (*SerialDB) IsInterfaceNil

func (s *SerialDB) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*SerialDB) Put

func (s *SerialDB) Put(key, val []byte) error

Put adds the value to the (key, val) storage medium

func (SerialDB) RangeKeys

func (bldb SerialDB) RangeKeys(handler func(key []byte, value []byte) bool)

RangeKeys will call the handler function for each (key, value) pair If the handler returns true, the iteration will continue, otherwise will stop

func (*SerialDB) Remove

func (s *SerialDB) Remove(key []byte) error

Remove removes the data associated to the given key