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https://issues.apache.org/jira/browse/CAMEL-5567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13448539#comment-13448539
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Alan Foster commented on CAMEL-5567:
------------------------------------
@Hadrian Yes you're right, I've shown multiple xpath expressions which you
could of course combine into one xpath.
But the intentions are that you can use any of the pluggable expression
languages in a row ie
{code}
<correlationExpression>
<!-- Try header first -->
<header>foo</xpath>
<!-- If this xpath returns nothing try the next expression -->
<xpath>/AcmeServiceResponse/CorrelationId/text()</xpath>
<!-- Default to an Unknown constant correlation id -->
<constant>Unknown</xpath>
</correlationExpression>
{code}
This could be very powerful/useful to add I feel
What are your opinions on this Hadrian? :)
> Add Multiple correlation Ids to the Aggregator component
> --------------------------------------------------------
>
> Key: CAMEL-5567
> URL: https://issues.apache.org/jira/browse/CAMEL-5567
> Project: Camel
> Issue Type: Improvement
> Reporter: Alan Foster
>
> Currently the aggregator component allows users to specifiy one expression
> that they would like to use for aggregation
> It would be nice to add many different correlation expressions for all of the
> different payload contents that an aggregator can receive
> For instance it may look like
> {code}
> <camelContext xmlns="http://camel.apache.org/schema/spring";>
> <route>
> <from uri="direct:start"/>
>
> <aggregate strategyRef="aggregatorStrategy" completionTimeout="3000">
> <correlationExpression>
> <!-- If this xpath returns nothing try the next expression
> etc -->
> <xpath>/AcmeServiceResponse/CorrelationId/text()</xpath>
> <xpath>/FooResponse/Id/text()</xpath>
> <xpath>/CorrelationKey/text()</xpath>
> </correlationExpression>
> <to uri="mock:aggregated"/>
> </aggregate>
> </route>
> </camelContext>
> {code}
> I wonder what your thoughts are on this suggestion? If it seems like a good
> idea I can start to make a patch for it
> Alan
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