XQuery

XQuery

Camel supports XQuery to allow an Expression or Predicate to be used in the DSL or Xml Configuration. For example you could use XQuery to create an Predicate in a Message Filter or as an Expression for a Recipient List.

From 1.3 of Camel onwards you can use XQuery expressions directly using smart completion in your IDE as follows

from("queue:foo").filter().
  xquery("//foo")).
  to("queue:bar")

In earlier versions of Camel you had to use theXQueryBuilder methods then you can use the xquery() function inside your rules.

import static org.apache.camel.builder.saxon.XQueryBuilder.*;
...
from("queue:foo").
  filter(xquery("//foo")).
  to("queue:bar")

Examples

Here is a simple example using an XQuery expression as a predicate in a Message Filter

This example uses XQuery with namespaces as a predicate in a Message Filter