c

akka.cluster.sharding.typed

Murmur2MessageExtractor

final class Murmur2MessageExtractor[M] extends ShardingMessageExtractor[ShardingEnvelope[M], M]

The murmur2 message extractor uses the same algorithm as the default kafka partitioner allowing kafka partitions to be mapped to shards. This can be used with the akka.cluster.sharding.external.ExternalShardAllocationStrategy to have messages processed locally.

Extend Murmur2NoEnvelopeMessageExtractor to not use a message envelope extractor.

Source
Murmur2MessageExtractor.scala
Type Hierarchy
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Inherited
  1. Murmur2MessageExtractor
  2. ShardingMessageExtractor
  3. AnyRef
  4. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new Murmur2MessageExtractor(numberOfShards: Int)

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 Murmur2MessageExtractor[M] toany2stringadd[Murmur2MessageExtractor[M]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (Murmur2MessageExtractor[M], B)
    Implicit
    This member is added by an implicit conversion from Murmur2MessageExtractor[M] toArrowAssoc[Murmur2MessageExtractor[M]] 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(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  8. def ensuring(cond: (Murmur2MessageExtractor[M]) => Boolean, msg: => Any): Murmur2MessageExtractor[M]
    Implicit
    This member is added by an implicit conversion from Murmur2MessageExtractor[M] toEnsuring[Murmur2MessageExtractor[M]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: (Murmur2MessageExtractor[M]) => Boolean): Murmur2MessageExtractor[M]
    Implicit
    This member is added by an implicit conversion from Murmur2MessageExtractor[M] toEnsuring[Murmur2MessageExtractor[M]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean, msg: => Any): Murmur2MessageExtractor[M]
    Implicit
    This member is added by an implicit conversion from Murmur2MessageExtractor[M] toEnsuring[Murmur2MessageExtractor[M]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean): Murmur2MessageExtractor[M]
    Implicit
    This member is added by an implicit conversion from Murmur2MessageExtractor[M] toEnsuring[Murmur2MessageExtractor[M]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def entityId(envelope: ShardingEnvelope[M]): String

    Extract the entity id from an incoming message.

    Extract the entity id from an incoming message. If null is returned the message will be unhandled, i.e. posted as Unhandled messages on the event stream

    Definition Classes
    Murmur2MessageExtractorShardingMessageExtractor
  13. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  15. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from Murmur2MessageExtractor[M] toStringFormat[Murmur2MessageExtractor[M]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  16. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  17. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  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() @HotSpotIntrinsicCandidate()
  21. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  22. val numberOfShards: Int
  23. def shardId(entityId: String): String

    The shard identifier for a given entity id.

    The shard identifier for a given entity id. Only messages that passed the ShardingMessageExtractor#entityId function will be used as input to this function.

    Definition Classes
    Murmur2MessageExtractorShardingMessageExtractor
  24. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  25. def toString(): String
    Definition Classes
    AnyRef → Any
  26. def unwrapMessage(envelope: ShardingEnvelope[M]): M

    Extract the message to send to the entity from an incoming message.

    Extract the message to send to the entity from an incoming message. Note that the extracted message does not have to be the same as the incoming message to support wrapping in message envelope that is unwrapped before sending to the entity actor.

    Definition Classes
    Murmur2MessageExtractorShardingMessageExtractor
  27. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  28. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  29. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated
  2. def [B](y: B): (Murmur2MessageExtractor[M], B)
    Implicit
    This member is added by an implicit conversion from Murmur2MessageExtractor[M] toArrowAssoc[Murmur2MessageExtractor[M]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.13.0) Use -> instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd fromMurmur2MessageExtractor[M] to any2stringadd[Murmur2MessageExtractor[M]]

Inherited by implicit conversion StringFormat fromMurmur2MessageExtractor[M] to StringFormat[Murmur2MessageExtractor[M]]

Inherited by implicit conversion Ensuring fromMurmur2MessageExtractor[M] to Ensuring[Murmur2MessageExtractor[M]]

Inherited by implicit conversion ArrowAssoc fromMurmur2MessageExtractor[M] to ArrowAssoc[Murmur2MessageExtractor[M]]

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