Packages

trait Subscriber[Payload] extends AnyRef

A Subscriber for consuming messages from a message broker.

Source
Subscriber.scala
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  1. Subscriber
  2. AnyRef
  3. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
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Abstract Value Members

  1. abstract def atLeastOnce(flow: Flow[Payload, Done, _]): Future[Done]

    Applies the passed flow to the messages processed by this subscriber.

    Applies the passed flow to the messages processed by this subscriber. Messages are delivered to the passed flow at least once.

    If a failure occurs (e.g., an exception is thrown), the stream may be automatically restarted starting with the message that caused the failure.

    Whether the stream is automatically restarted depends on the Lagom message broker implementation in use. If the Kafka Lagom message broker module is being used, then by default the stream is automatically restarted when a failure occurs.

    The flow may pull more elements from upstream but it must emit exactly one Done message for each message that it receives. It must also emit them in the same order that the messages were received. This means that the flow must not filter or collect a subset of the messages, instead it must split the messages into separate streams and map those that would have been dropped to Done.

    flow

    The flow to apply to each received message.

    returns

    A Future that will be completed if the flow completes.

  2. abstract def atMostOnceSource: Source[Payload, _]

    Returns a stream of messages with at most once delivery semantic.

    Returns a stream of messages with at most once delivery semantic.

    If a failure occurs (e.g., an exception is thrown), the user is responsible of deciding how to recover from it (e.g., restarting the stream, aborting, ...).

  3. abstract def withGroupId(groupId: String): Subscriber[Payload]

    Returns a copy of this subscriber with the passed group id.

    Returns a copy of this subscriber with the passed group id.

    groupId

    The group id to assign to this subscriber.

    returns

    A copy of this subscriber with the passed group id.

  4. abstract def withMetadata: Subscriber[Message[Payload]]

    Returns this subscriber, but message payloads are wrapped in Message instances to allow accessing any metadata associated with the message.

    Returns this subscriber, but message payloads are wrapped in Message instances to allow accessing any metadata associated with the message.

    returns

    A copy of this subscriber.

Concrete 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
    This member is added by an implicit conversion from Subscriber[Payload] to any2stringadd[Subscriber[Payload]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (Subscriber[Payload], B)
    Implicit
    This member is added by an implicit conversion from Subscriber[Payload] to ArrowAssoc[Subscriber[Payload]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  8. def ensuring(cond: (Subscriber[Payload]) ⇒ Boolean, msg: ⇒ Any): Subscriber[Payload]
    Implicit
    This member is added by an implicit conversion from Subscriber[Payload] to Ensuring[Subscriber[Payload]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: (Subscriber[Payload]) ⇒ Boolean): Subscriber[Payload]
    Implicit
    This member is added by an implicit conversion from Subscriber[Payload] to Ensuring[Subscriber[Payload]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean, msg: ⇒ Any): Subscriber[Payload]
    Implicit
    This member is added by an implicit conversion from Subscriber[Payload] to Ensuring[Subscriber[Payload]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean): Subscriber[Payload]
    Implicit
    This member is added by an implicit conversion from Subscriber[Payload] to Ensuring[Subscriber[Payload]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  14. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  15. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from Subscriber[Payload] to StringFormat[Subscriber[Payload]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  16. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  17. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  18. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  19. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  20. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  21. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  22. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  23. def toString(): String
    Definition Classes
    AnyRef → Any
  24. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  25. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  27. def →[B](y: B): (Subscriber[Payload], B)
    Implicit
    This member is added by an implicit conversion from Subscriber[Payload] to ArrowAssoc[Subscriber[Payload]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from Subscriber[Payload] to any2stringadd[Subscriber[Payload]]

Inherited by implicit conversion StringFormat from Subscriber[Payload] to StringFormat[Subscriber[Payload]]

Inherited by implicit conversion Ensuring from Subscriber[Payload] to Ensuring[Subscriber[Payload]]

Inherited by implicit conversion ArrowAssoc from Subscriber[Payload] to ArrowAssoc[Subscriber[Payload]]

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