Add an addNamespaces(OMElement) method to AXIOMXPath
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Key: WSCOMMONS-333
URL: https://issues.apache.org/jira/browse/WSCOMMONS-333
Project: WS-Commons
Issue Type: Improvement
Components: AXIOM
Reporter: Andreas Veithen
Priority: Minor
Very often, XPath expressions are read from XML configuration files, in which
case such an XPath expression typically appears as an attribute value. In this
case the namespace context of the XPath expression is determined by the
namespace declarations in scope on the element which has the attribute in which
the expression occurs.
Example:
<configfile xmlns:ns="http://example.org";>
<someelement expression="//ns:something"/>
</configfile>
In this case, the "ns" prefix in the expression "//ns:something" is expected to
be bound to "http://example.org";. It would be useful to have a method
addNamespaces(OMElement) in AXIOMXPath that sets up the namespace context of
the XPath expression based on the namespace declaration of the given OMElement
(corresponding to "someelement" in the example above).
There is already some code in Synapse that does this (see the addNameSpaces
method):
http://svn.apache.org/repos/asf/synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/config/xml/OMElementUtils.java
Since this might be useful to others, AXIOMXPath would be a better place to
have this code.
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