akka.persistence

PersistentChannel

final class PersistentChannel extends Actor

A PersistentChannel implements the same functionality as a Channel but additionally persists Deliver requests before they are served. Persistent channels are useful in combination with slow destinations or destinations that are unavailable for a long time. Deliver requests that have been persisted by a persistent channel are deleted when destinations confirm the receipt of the corresponding messages.

The number of pending confirmations can be limited by a persistent channel based on the parameters of PersistentChannelSettings. It can suspend delivery when the number of pending confirmations reaches pendingConfirmationsMax and resume delivery again when this number falls below pendingConfirmationsMin. This prevents both flooding destinations with more messages than they can process and unlimited memory consumption by the channel. A persistent channel continues to persist Deliver request even when message delivery is temporarily suspended.

A persistent channel can also reply to Deliver senders if the request has been successfully persisted or not (see replyPersistent parameter in PersistentChannelSettings). In case of success, the channel replies with the contained Persistent message, otherwise with a PersistenceFailure message.

Source
PersistentChannel.scala
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Actor, AnyRef, Any
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  1. PersistentChannel
  2. Actor
  3. AnyRef
  4. Any
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  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Type Members

  1. type Receive = PartialFunction[Any, Unit]

    Definition Classes
    Actor

Value Members

  1. final def !=(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

    Definition Classes
    AnyRef → Any

  3. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from PersistentChannel to any2stringadd[PersistentChannel] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

  4. def ->[B](y: B): (PersistentChannel, B)

    Implicit information
    This member is added by an implicit conversion from PersistentChannel to ArrowAssoc[PersistentChannel] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

  5. final def ==(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  6. def aroundPostRestart(reason: Throwable): Unit

    Attributes
    protected[akka]
    Definition Classes
    Actor

  7. def aroundPostStop(): Unit

    Attributes
    protected[akka]
    Definition Classes
    Actor

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

    Attributes
    protected[akka]
    Definition Classes
    Actor

  9. def aroundPreStart(): Unit

    Attributes
    protected[akka]
    Definition Classes
    Actor

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

    Attributes
    protected[akka]
    Definition Classes
    Actor

  11. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  12. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  13. implicit val context: ActorContext

    Definition Classes
    Actor

  14. def ensuring(cond: (PersistentChannel) ⇒ Boolean, msg: ⇒ Any): PersistentChannel

    Implicit information
    This member is added by an implicit conversion from PersistentChannel to Ensuring[PersistentChannel] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  15. def ensuring(cond: (PersistentChannel) ⇒ Boolean): PersistentChannel

    Implicit information
    This member is added by an implicit conversion from PersistentChannel to Ensuring[PersistentChannel] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  16. def ensuring(cond: Boolean, msg: ⇒ Any): PersistentChannel

    Implicit information
    This member is added by an implicit conversion from PersistentChannel to Ensuring[PersistentChannel] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  17. def ensuring(cond: Boolean): PersistentChannel

    Implicit information
    This member is added by an implicit conversion from PersistentChannel to Ensuring[PersistentChannel] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  18. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  19. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  20. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  21. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from PersistentChannel to StringFormat[PersistentChannel] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

  22. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  23. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  24. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  25. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  26. final def notify(): Unit

    Definition Classes
    AnyRef

  27. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  28. def postRestart(reason: Throwable): Unit

    Definition Classes
    Actor
    Annotations
    @throws( classOf[java.lang.Exception] )

  29. def postStop(): Unit

    Definition Classes
    Actor
    Annotations
    @throws( classOf[java.lang.Exception] )

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

    Definition Classes
    Actor
    Annotations
    @throws( classOf[java.lang.Exception] )

  31. def preStart(): Unit

    Definition Classes
    Actor
    Annotations
    @throws( classOf[java.lang.Exception] )

  32. def receive: PartialFunction[Any, Unit]

    Definition Classes
    PersistentChannel → Actor

  33. implicit final val self: ActorRef

    Definition Classes
    Actor

  34. final def sender(): ActorRef

    Definition Classes
    Actor

  35. def supervisorStrategy: SupervisorStrategy

    Definition Classes
    Actor

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

    Definition Classes
    AnyRef

  37. def toString(): String

    Definition Classes
    AnyRef → Any

  38. def unhandled(message: Any): Unit

    Definition Classes
    Actor

  39. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  41. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  42. def →[B](y: B): (PersistentChannel, B)

    Implicit information
    This member is added by an implicit conversion from PersistentChannel to ArrowAssoc[PersistentChannel] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from Actor

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from PersistentChannel to any2stringadd[PersistentChannel]

Inherited by implicit conversion StringFormat from PersistentChannel to StringFormat[PersistentChannel]

Inherited by implicit conversion Ensuring from PersistentChannel to Ensuring[PersistentChannel]

Inherited by implicit conversion ArrowAssoc from PersistentChannel to ArrowAssoc[PersistentChannel]

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