[CONF] Apache Camel: EL (page edited)

Wed, 21 May 2008 08:17:44 -0700

Page Edited : CAMEL : EL

EL has been edited by Aaron Mulder (May 21, 2008).

(View changes)

Content:

EL

Camel supports the unified JSP and JSF _expression_ Language via the JUEL to allow an _expression_ or Predicate to be used in the DSL or Xml Configuration.

For example you could use EL inside a Message Filter in XML

<route>
  <from uri="seda:foo"/>
  <filter>
    <el>${in.headers.foo == 'bar'}</el>
    <to uri="seda:bar"/>
  </filter>
</route>


You could also use slightly different syntax, e.g. if the header name is not a valid identifier:





<route>
  <from uri="seda:foo"/>
  <filter>
    <el>${in.headers['My Header'] == 'bar'}</el>
    <to uri="seda:bar"/>
  </filter>
</route>





You could use EL to create an Predicate in a Message Filter or as an _expression_ for a Recipient List

Powered by Atlassian Confluence (Version: 2.2.9 Build:#527 Sep 07, 2006) - Bug/feature request

Unsubscribe or edit your notifications preferences

Reply via email to