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Notice this is only possible in the batch mode of the Resequencer.

Ignore invalid exchanges

Available as of Camel 2.9

The resequencer EIP will from Camel 2.9 onwards throw a CamelExchangeException if the incoming Exchange is not valid for the resequencer - ie. the expression cannot be evaluated, such as a missing header. You can use the option ignoreInvalidExchanges to ignore these exceptions which means the Resequencer will then skip the invalid Exchange.

{snippet:id=e1|lang=java|url=camel/trunk/camel-core/src/test/java/org/apache/camel/processor/ResequenceBatchIgnoreInvalidExchangesTest.java}

This option is available for both batch and stream resequencer.

Stream Resequencing

The next example shows how to use the stream-processing resequencer. Messages are re-ordered based on their sequence numbers given by a seqnum header using gap detection and timeouts on the level of individual messages.

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