Trait/Object

com.lightbend.lagom.scaladsl.api.broker.kafka

PartitionKeyStrategy

Related Docs: object PartitionKeyStrategy | package kafka

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trait PartitionKeyStrategy[-Message] extends AnyRef

Defines an algorithm for producing a key from a Message.

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  1. abstract def computePartitionKey(message: Message): String

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    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.

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