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From "Hadrian Zbarcea (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CAMEL-1699) pipeline function should have 0-parameter version
Date Fri, 12 Jun 2009 03:29:35 GMT

    [ https://issues.apache.org/activemq/browse/CAMEL-1699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=52217#action_52217
] 

Hadrian Zbarcea commented on CAMEL-1699:
----------------------------------------

Well spotted.

We appreciated contributions, would you like to take a stab at it?

> pipeline function should have 0-parameter version
> -------------------------------------------------
>
>                 Key: CAMEL-1699
>                 URL: https://issues.apache.org/activemq/browse/CAMEL-1699
>             Project: Apache Camel
>          Issue Type: Improvement
>          Components: camel-core
>            Reporter: Joe Gottman
>             Fix For: 2.1.0
>
>
> Currently the pipeline function takes an array of uri strings or Endpoints.  It should
also take 0 parameters to create a PipelineDefinition object that requires an end() to finish,
similar to multicast().  To see why this is necessary, consider the multicast example from
the wiki:
> <route>
>   <from uri="activemq:SomeQueue"/>
>   <multicast>
>     <pipeline>
>       <bean ref="something"/>
>       <to uri="log:Something"/>
>     </pipeline>
>     <pipeline>
>       <bean ref="foo"/>
>       <bean ref="bar"/>
>       <to uri="activemq:OutputQueue"/>
>     </pipeline>
>   </multicast>
> </route>
>    Since the contents of the two pipelines are not just uri's there is no easy way to
create this route in Java.  If we had a pipeline() function, we could do it as follows:
>   from("activemq:SomeQueue")
>     .multicast()
>       pipeline()
>          .beanRef("something")
>          .to("log:Something")
>      .end()  //pipeline
>      .pipeline()
>         .beanRef("foo")
>         .beanRef="bar"/>
>         .to("activemq:OutputQueue)
>      .end() //pipeline
>   .end() ;//multicast

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