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The aggregator EIP aggregates messages based on some message correlation criteria. In the Scala DSL, the aggregate method takes a function Exchange ⇒ Any to determine the correlation value for the exchange. In both samples the sample below, message are being aggregated if the first 7 letters in the message body are the same.

{snippet:id=simple|lang=java|url=camel/trunk/components/camel-scala/src/test/scala/org/apache/camel/scala/dsl/AggregatorTest.scala}

{snippet:id=block|lang=java|url=camel/trunk/components/camel-scala/src/test/scala/org/apache/camel/scala/dsl/AggregatorTest.scala}

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{snippet:id=simple|lang=java|url=camel/trunk/components/camel-scala/src/test/scala/org/apache/camel/scala/dsl/PipelineAndMulticastTest.scala}

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{snippet:id=multicast|lang=java|url=camel/trunk/components/camel-scala/src/test/scala/org/apache/camel/scala/dsl/ExplicitMulticastTest.scala}

Recipient list

You can handle a static recipient list with a multicast or pipeline , but this EIP is usually applied when you want to dynamically determine the name(s) of the next endpoint(s) to route to. Use the recipients() method with a function literal (Exchange => Any) that returns the endpoint name(s). In the example below, the target endpoint name can be found in the String message starting at position 21.

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{snippet:id=velocity|lang=java|url=camel/trunk/components/camel-scala/src/test/scala/org/apache/camel/scala/dsl/ContentEnricherTest.scala}

TODO

TODO: Create a Scala alternative and example for every EIP available

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