t
com.lightbend.lagom.scaladsl.api.broker.kafka
PartitionKeyStrategy
Companion object PartitionKeyStrategy
trait PartitionKeyStrategy[-Message] extends AnyRef
Defines an algorithm for producing a key from a Message.
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abstract
def
computePartitionKey(message: Message): String
Computes a key from a message.
Computes a key from a message. The key is used to decide on what topic's partition a message should be published to.
- message
The message to publish into a Kafka topic.
- returns
A key used to decide on what topic's partition the passed message is published to.
Concrete Value Members
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final
def
!=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
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final
def
##(): Int
- Definition Classes
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def
+(other: String): String
- Implicit
- This member is added by an implicit conversion from PartitionKeyStrategy[Message] to any2stringadd[PartitionKeyStrategy[Message]] performed by method any2stringadd in scala.Predef.
- Definition Classes
- any2stringadd
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def
->[B](y: B): (PartitionKeyStrategy[Message], B)
- Implicit
- This member is added by an implicit conversion from PartitionKeyStrategy[Message] to ArrowAssoc[PartitionKeyStrategy[Message]] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
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- @inline()
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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def
clone(): AnyRef
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def
ensuring(cond: (PartitionKeyStrategy[Message]) ⇒ Boolean, msg: ⇒ Any): PartitionKeyStrategy[Message]
- Implicit
- This member is added by an implicit conversion from PartitionKeyStrategy[Message] to Ensuring[PartitionKeyStrategy[Message]] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
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def
ensuring(cond: (PartitionKeyStrategy[Message]) ⇒ Boolean): PartitionKeyStrategy[Message]
- Implicit
- This member is added by an implicit conversion from PartitionKeyStrategy[Message] to Ensuring[PartitionKeyStrategy[Message]] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
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def
ensuring(cond: Boolean, msg: ⇒ Any): PartitionKeyStrategy[Message]
- Implicit
- This member is added by an implicit conversion from PartitionKeyStrategy[Message] to Ensuring[PartitionKeyStrategy[Message]] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
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def
ensuring(cond: Boolean): PartitionKeyStrategy[Message]
- Implicit
- This member is added by an implicit conversion from PartitionKeyStrategy[Message] to Ensuring[PartitionKeyStrategy[Message]] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
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final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
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def
equals(arg0: Any): Boolean
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def
finalize(): Unit
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- @throws( classOf[java.lang.Throwable] )
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def
formatted(fmtstr: String): String
- Implicit
- This member is added by an implicit conversion from PartitionKeyStrategy[Message] to StringFormat[PartitionKeyStrategy[Message]] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @inline()
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final
def
getClass(): Class[_]
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- @native()
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def
hashCode(): Int
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final
def
isInstanceOf[T0]: Boolean
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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def
synchronized[T0](arg0: ⇒ T0): T0
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def
toString(): String
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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def
→[B](y: B): (PartitionKeyStrategy[Message], B)
- Implicit
- This member is added by an implicit conversion from PartitionKeyStrategy[Message] to ArrowAssoc[PartitionKeyStrategy[Message]] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc