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Subject: Re: [digester] using xpath to select nodes
From: Simon Kitching <skitching@apache.org>
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To: Jakarta Commons Users List <commons-user@jakarta.apache.org>
In-Reply-To: <fa5c729b0602090746r5a69cbf3ibc5368528fc2089d@mail.gmail.com>
References: <fa5c729b0602090746r5a69cbf3ibc5368528fc2089d@mail.gmail.com>
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Date: Fri, 10 Feb 2006 18:08:34 +1300
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On Thu, 2006-02-09 at 16:46 +0100, Valerio Schiavoni wrote:
> Hello,
> i have this kind of xml i want to parse:
> <pageclass name='news'>
> <page pageid="33">
>             <metadata name="title>
>              a title
>             </metadata>
>             <metadata name="remoteURL">
>             a url
>            </metadata>
> </page>
> </pageclass>
> <pageclass name='other'>
> <page pageid="xx">
>    ....
> </page>
> </pageclass>
> 
> So in the digester i have this code (only relevant part ):
> 
> digester.setRules(new ExtendedBaseRules());
> digester.addObjectCreate("website/pageclass[@name='news']/page",
>                 Notizia.class.getName());
> 
> which doesn't work as I was supposing:  when I try to peek the object on the
> stack, i get a NPE.
> So the question is: does digester support that kind of xpath expressions to
> select nodes?

No. None of the rule-matching implementations support XPath expressions.

As this has been asked before, I've created a new FAQ entry; see the
last entry in this page:
  http://wiki.apache.org/jakarta-commons/Digester/FAQ

Regards,

Simon


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