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From "Babak Vahdat (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAMEL-5550) Add headerName option to xpath/xpath language
Date Fri, 31 Aug 2012 09:03:07 GMT

    [ https://issues.apache.org/jira/browse/CAMEL-5550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445783#comment-13445783
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Babak Vahdat commented on CAMEL-5550:
-------------------------------------

Willem

The patch provided by Alan doesn't include any modification for XQueryBuilder.java, however
your commit has changed this source as well causing the previous commit being reverted!

http://svn.apache.org/viewvc/camel/trunk/components/camel-saxon/src/main/java/org/apache/camel/component/xquery/XQueryBuilder.java?r1=1378534&r2=1379352&pathrev=1379352

                
> Add headerName option to xpath/xpath language
> ---------------------------------------------
>
>                 Key: CAMEL-5550
>                 URL: https://issues.apache.org/jira/browse/CAMEL-5550
>             Project: Camel
>          Issue Type: Improvement
>          Components: camel-core
>            Reporter: Claus Ibsen
>            Assignee: Willem Jiang
>            Priority: Minor
>             Fix For: 2.11.0
>
>         Attachments: CAMEL-5550.patch
>
>
> We recently added headerName to @XPath / @XQuery to support doing xpaths on headers.
We should add that as well to the xpath/xquery languages so its exposed in the DSL, so people
can use that.
> For example in a content based router. Today there is some functions that return a header,
but its a bit cumbersome to use. Maybe people have stored a xml in a header, and just want
the xpath to evaluate on that.
> The Java / Scala DSL is a bit heavier to add, as it would entail new methods in various
builder classes to support that. And we got a bunch already for the namespaces, and return
type etc. So be selective and only add a few for the header which makes the most sense. People
can always create the expression/predicate using the xpath builder itself.

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