cassandra

Documentation

Index

• Constants
• func CreateCassandraKeyspace(s *gocql.Session, keyspace string, replicas int, overwrite bool, ...) (err error)
• func DropCassandraKeyspace(s *gocql.Session, keyspace string, logger log.Logger) (err error)
• func GetTaskTTL(task *persistencespb.TaskInfo) int64
• func NewHistoryV2PersistenceFromSession(session *gocql.Session, logger log.Logger) p.HistoryStore
• func NewSession(cfg config.Cassandra, r resolver.ServiceResolver) (*gocql.Session, error)
• func NewWorkflowExecutionPersistence(shardID int32, session *gocql.Session, logger log.Logger) (p.ExecutionStore, error)
• type Factory
  • func NewFactory(cfg config.Cassandra, r resolver.ServiceResolver, clusterName string, ...) *Factory
  • func (f *Factory) Close()
  • func (f *Factory) NewClusterMetadataStore() (p.ClusterMetadataStore, error)
  • func (f *Factory) NewExecutionStore(shardID int32) (p.ExecutionStore, error)
  • func (f *Factory) NewHistoryStore() (p.HistoryStore, error)
  • func (f *Factory) NewMetadataStore() (p.MetadataStore, error)
  • func (f *Factory) NewQueue(queueType p.QueueType) (p.Queue, error)
  • func (f *Factory) NewShardStore() (p.ShardStore, error)
  • func (f *Factory) NewTaskStore() (p.TaskStore, error)
  • func (f *Factory) NewVisibilityStore() (p.VisibilityStore, error)
• type FieldNotFoundError
  • func (f FieldNotFoundError) Error() string
• type PersistedTypeMismatchError
  • func (f PersistedTypeMismatchError) Error() string
• type TestCluster
  • func NewTestCluster(keyspace, username, password, host string, port int, schemaDir string, ...) *TestCluster
  • func (s *TestCluster) Config() config.Persistence
  • func (s *TestCluster) CreateDatabase()
  • func (s *TestCluster) CreateSession()
  • func (s *TestCluster) DatabaseName() string
  • func (s *TestCluster) DropDatabase()
  • func (s *TestCluster) LoadSchema(fileNames []string, schemaDir string)
  • func (s *TestCluster) LoadVisibilitySchema(fileNames []string, schemaDir string)
  • func (s *TestCluster) SetupTestDatabase()
  • func (s *TestCluster) TearDownTestDatabase()

Constants

const (
	// ProtocolVersion is the protocol version used to communicate with Cassandra cluster
	ProtocolVersion = 4
)

"go.temporal.io/api/serviceerror"

Guidelines for creating new special UUID constants Each UUID should be of the form: E0000000-R000-f000-f000-00000000000x Where x is any hexadecimal value, E represents the entity type valid values are: E = {NamespaceID = 1, WorkflowID = 2, RunID = 3} R represents row type in executions table, valid values are: R = {Shard = 1, Execution = 2, Transfer = 3, Timer = 4, Replication = 5}

Functions

func CreateCassandraKeyspace

func CreateCassandraKeyspace(s *gocql.Session, keyspace string, replicas int, overwrite bool, logger log.Logger) (err error)

CreateCassandraKeyspace creates the keyspace using this session for given replica count

func DropCassandraKeyspace

func DropCassandraKeyspace(s *gocql.Session, keyspace string, logger log.Logger) (err error)

DropCassandraKeyspace drops the given keyspace, if it exists

func GetTaskTTL

func GetTaskTTL(task *persistencespb.TaskInfo) int64

func NewHistoryV2PersistenceFromSession

func NewHistoryV2PersistenceFromSession(
	session *gocql.Session,
	logger log.Logger,
) p.HistoryStore

NewHistoryV2PersistenceFromSession returns new HistoryStore

func NewSession

func NewSession(
	cfg config.Cassandra,
	r resolver.ServiceResolver,
) (*gocql.Session, error)

NewSession creates a new cassandra session

func NewWorkflowExecutionPersistence

func NewWorkflowExecutionPersistence(
	shardID int32,
	session *gocql.Session,
	logger log.Logger,
) (p.ExecutionStore, error)

NewWorkflowExecutionPersistence is used to create an instance of workflowExecutionManager implementation

Types

type Factory

type Factory struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

Factory vends datastore implementations backed by cassandra

func NewFactory

func NewFactory(cfg config.Cassandra, r resolver.ServiceResolver, clusterName string, logger log.Logger) *Factory

NewFactory returns an instance of a factory object which can be used to create datastores that are backed by cassandra

func (*Factory) Close

func (f *Factory) Close()

Close closes the factory

func (*Factory) NewClusterMetadataStore

func (f *Factory) NewClusterMetadataStore() (p.ClusterMetadataStore, error)

NewClusterMetadataStore returns a metadata store

func (*Factory) NewExecutionStore

func (f *Factory) NewExecutionStore(shardID int32) (p.ExecutionStore, error)

NewExecutionStore returns an ExecutionStore for a given shardID

func (*Factory) NewHistoryStore

func (f *Factory) NewHistoryStore() (p.HistoryStore, error)

NewHistoryStore returns a new history store

func (*Factory) NewMetadataStore

func (f *Factory) NewMetadataStore() (p.MetadataStore, error)

NewMetadataStore returns a metadata store that understands only v2

func (*Factory) NewQueue

func (f *Factory) NewQueue(queueType p.QueueType) (p.Queue, error)

NewQueue returns a new queue backed by cassandra

func (*Factory) NewShardStore

func (f *Factory) NewShardStore() (p.ShardStore, error)

NewShardStore returns a new shard store

func (*Factory) NewTaskStore

func (f *Factory) NewTaskStore() (p.TaskStore, error)

NewTaskStore returns a new task store

func (*Factory) NewVisibilityStore

func (f *Factory) NewVisibilityStore() (p.VisibilityStore, error)

NewVisibilityStore returns a visibility store

type FieldNotFoundError

type FieldNotFoundError struct {
	Msg string
}

FieldNotFoundError is an error type returned when an untyped query return does not contain the expected fields.

func (FieldNotFoundError) Error

func (f FieldNotFoundError) Error() string

type PersistedTypeMismatchError

type PersistedTypeMismatchError struct {
	Msg string
}

PersistedTypeMismatchError is an error type returned when a persisted cassandra value does not match the expected type.

func (PersistedTypeMismatchError) Error

func (f PersistedTypeMismatchError) Error() string

type TestCluster

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

TestCluster allows executing cassandra operations in testing.

func NewTestCluster

func NewTestCluster(keyspace, username, password, host string, port int, schemaDir string, logger log.Logger) *TestCluster

NewTestCluster returns a new cassandra test cluster

func (*TestCluster) Config

func (s *TestCluster) Config() config.Persistence

Config returns the persistence config for connecting to this test cluster

func (*TestCluster) CreateDatabase

func (s *TestCluster) CreateDatabase()

CreateDatabase from PersistenceTestCluster interface

func (*TestCluster) CreateSession

func (s *TestCluster) CreateSession()

CreateSession from PersistenceTestCluster interface

func (*TestCluster) DatabaseName

func (s *TestCluster) DatabaseName() string

DatabaseName from PersistenceTestCluster interface

func (*TestCluster) DropDatabase

func (s *TestCluster) DropDatabase()

DropDatabase from PersistenceTestCluster interface

func (*TestCluster) LoadSchema

func (s *TestCluster) LoadSchema(fileNames []string, schemaDir string)

LoadSchema from PersistenceTestCluster interface

func (*TestCluster) LoadVisibilitySchema

func (s *TestCluster) LoadVisibilitySchema(fileNames []string, schemaDir string)

LoadVisibilitySchema from PersistenceTestCluster interface

func (*TestCluster) SetupTestDatabase

func (s *TestCluster) SetupTestDatabase()

SetupTestDatabase from PersistenceTestCluster interface

func (*TestCluster) TearDownTestDatabase

func (s *TestCluster) TearDownTestDatabase()

TearDownTestDatabase from PersistenceTestCluster interface