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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » custom java plugin node retrieving xml attribute values

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malammik
PostPosted: Thu Mar 17, 2005 11:33 am    Post subject: custom java plugin node retrieving xml attribute values Reply with quote

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Joined: 27 Jan 2005
Posts: 397
Location: Philadelphia, PA
I am making a custom java node that will process xml messages to perform xpath queries. One of the xml objects that I need to be able to access are xml attributes. It appears that the plug-in api allows you to create elements that contain attributes but I can't find any way to access them. For example, if I have xml that looks like this
<letter xmlns="alphabet_letters">
A
</letter>

I cannot find any way through the plugin API to access the value of xmlns. Has anyone tried this?

Thanks,
Mikhail.
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jefflowrey
PostPosted: Thu Mar 17, 2005 11:52 am    Post subject: Reply with quote

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Joined: 16 Oct 2002
Posts: 19981
You may have to use MBElement.getFirstChild, MBElement.getNextSibling to walk the tree to find what you need.

You might be able to construct a path that would work for MBElement.getFirstElementByPath, but the fact is that XML Attributes are MBElements of a different type than XML Elements are. I think they end up being NameValue elements instead of Name elements with Value element children. Or the other way around...

Look at a Trace of an XML file with Attributes. It may help you map between the MBElement calls you need to make and the tree structure that is produced.
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