CassandraEventLog

An event log actor with Apache Cassandra as storage backend. It uses the Cassandra extension to connect to a Cassandra cluster. Applications should create an instance of this actor using the props method of the CassandraEventLog companion object.

val factory: ActorRefFactory = ... // ActorSystem or ActorContext
val logId: String = "example"      // Unique log id

val log = factory.actorOf(CassandraEventLog.props(logId))

Each event log actor creates two tables in the configured keyspace (see also Cassandra). Assuming the following table prefix

eventuate.log.cassandra.table-prefix = "log"

and a log id with value example, the names of these two tables are

log_example which represents the local event log.
log_example_agg which is an index of the local event log for those events that have non-empty destinationAggregateIds set. It is used for fast recovery of event-sourced actors or views that have an aggregateId defined.

See also: DurableEvent
Cassandra

Linear Supertypes

Stash, RequiresMessageQueue[DequeBasedMessageQueueSemantics], UnrestrictedStash, StashSupport, Actor, AnyRef, Any

Instance Constructors

new CassandraEventLog(id: String)

id
unique log id.

Type Members

type Receive = PartialFunction[Any, Unit]

Definition Classes
Actor

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def aroundPostRestart(reason: Throwable): Unit

Attributes
protected[akka]
Definition Classes
Actor
def aroundPostStop(): Unit

Attributes
protected[akka]
Definition Classes
Actor
def aroundPreRestart(reason: Throwable, message: Option[Any]): Unit

Attributes
protected[akka]
Definition Classes
Actor
def aroundPreStart(): Unit

Attributes
protected[akka]
Definition Classes
Actor
def aroundReceive(receive: akka.actor.Actor.Receive, msg: Any): Unit

Attributes
protected[akka]
Definition Classes
Actor
final def asInstanceOf[T0]: T0

Definition Classes
Any
val cassandra: Cassandra
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
implicit val context: ActorContext

Definition Classes
Actor
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
val eventStream: EventStream
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
val id: String

unique log id.
def initialized: Receive
def initializing: Receive
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def postRestart(reason: Throwable): Unit

Definition Classes
Actor
Annotations
@throws( classOf[java.lang.Exception] )
def postStop(): Unit

Definition Classes
UnrestrictedStash → Actor
def preRestart(reason: Throwable, message: Option[Any]): Unit

Definition Classes
UnrestrictedStash → Actor
def preStart(): Unit

Definition Classes
Actor
Annotations
@throws( classOf[java.lang.Exception] )
def receive: Receive

Definition Classes
CassandraEventLog → Actor
implicit final val self: ActorRef

Definition Classes
Actor
final def sender(): ActorRef

Definition Classes
Actor
def stash(): Unit

Definition Classes
StashSupport
def supervisorStrategy: SupervisorStrategy

Definition Classes
Actor
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
def unhandled(message: Any): Unit

Definition Classes
Actor
def unstashAll(): Unit

Definition Classes
StashSupport
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

class CassandraEventLog extends Actor with Stash

Instance Constructors

new CassandraEventLog(id: String)

Type Members

type Receive = PartialFunction[Any, Unit]

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def aroundPostRestart(reason: Throwable): Unit

def aroundPostStop(): Unit

def aroundPreRestart(reason: Throwable, message: Option[Any]): Unit

def aroundPreStart(): Unit

def aroundReceive(receive: akka.actor.Actor.Receive, msg: Any): Unit

final def asInstanceOf[T0]: T0

val cassandra: Cassandra

def clone(): AnyRef

implicit val context: ActorContext

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

val eventStream: EventStream

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

val id: String

def initialized: Receive

def initializing: Receive

final def isInstanceOf[T0]: Boolean

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def postRestart(reason: Throwable): Unit

def postStop(): Unit

def preRestart(reason: Throwable, message: Option[Any]): Unit

def preStart(): Unit

def receive: Receive

implicit final val self: ActorRef

final def sender(): ActorRef

def stash(): Unit

def supervisorStrategy: SupervisorStrategy

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

def unhandled(message: Any): Unit

def unstashAll(): Unit

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit

Inherited from Stash

Inherited from RequiresMessageQueue[DequeBasedMessageQueueSemantics]

Inherited from UnrestrictedStash

Inherited from StashSupport

Inherited from Actor

Inherited from AnyRef

Inherited from Any

Ungrouped