commons-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Craig Raw" <cr...@quirk.co.za>
Subject RE: [JXPath] The name attribute?
Date Tue, 25 Feb 2003 16:16:19 GMT
Thanks, much appreciated.

Craig

> -----Original Message-----
> From: Dmitri Plotnikov [mailto:dplotnik@yahoo.com] 
> Sent: 25 February 2003 06:01 PM
> To: Jakarta Commons Users List; craig@quirk.co.za
> Subject: Re: [JXPath] The name attribute?
> 
> 
> Craig,
> 
> "Name" is a special attribute that represents the name of the 
> property.  It was of course a mistake to introduce this 
> attribute without a namespace, it should have been something 
> like "jxpath:name", but now it is too late to change it for 
> compatibility reasons.  This special use of the "name" 
> attribute only applies to beans and maps and does not apply 
> to XML-based models (DOM, JDOM)
> 
> I recommend the use of the child access instead of attribute 
> to access properties, e.g. customer[name='xxx']
> 
> 
> - Dmitri
> 
> 
> --- Craig Raw <craig@quirk.co.za> wrote:
> > Hi,
> > 
> > I am using JXPath in combination with JAXB, and am finding it very 
> > useful. I have a question relating to a XPath query which contains 
> > predicates that specify attributes.
> > 
> > e.g. customer[@id='1']/value
> > 
> > For the most part this works fine, but when the attribute 
> has a name 
> > of 'name', as
> > 
> > e.g. customer[@name='xxx']/value
> > 
> > I always get null as a result. The JXPathContext javadoc 
> contains the 
> > following which does not make things any clearer to me, although I 
> > suspect it may apply:
> > 
> > "JXPath does not support DOM attributes for non-DOM objects. Even 
> > though XPaths like "para[@type='warning']" are legitimate, 
> they will 
> > always produce empty results. The only attribute supported for 
> > JavaBeans is "name". The XPath "foo/bar" is equivalent to 
> > "foo[@name='bar']". "
> > 
> > Is there some special handling for 'name'?
> > 
> > I am using JXPath 1.1b1. Attributes in JAXB are stored as normal 
> > variables of the class, with corresponding get/set methods 
> (getName(),
> > setName()).
> > 
> > Thanks for any clarification,
> > 
> > Craig
> > 
> > 
> > 
> > 
> ---------------------------------------------------------------------
> > To unsubscribe, e-mail: commons-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: 
> commons-user-help@jakarta.apache.org
> > 
> 
> 
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Tax Center - forms, calculators, tips, more 
http://taxes.yahoo.com/

---------------------------------------------------------------------
To unsubscribe, e-mail: commons-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: commons-user-help@jakarta.apache.org



Mime
View raw message