Re: [jxpath] optimize xpath query on xpath enabled containers

[Dmitri Plotnikov <dm...@apache.org>]

Michael,

I believe, adding this type of delegation for query evaluation would require 
quite significant refactoring of JXPath.  However, I could be wrong.  Do you 
have a particular fix in mind?

Thank you,

- Dmitri

----- Original Message ----- 
From: "Michael Homeijer" <mi...@fam-homeijer.demon.nl>
To: "Jakarta Commons Developers List" <co...@jakarta.apache.org>
Sent: Monday, January 31, 2005 2:43 PM
Subject: [jxpath] optimize xpath query on xpath enabled containers


Hi,

Im am looking at executing jxpath queries against a model that supports lazy 
loading and queries. Queries like "news[@title = ''test']" will be executed 
by looping through all nodes and testing if the expression is true for a 
node.
Because my model supports queries itself, It would be much faster to query 
the model and have the model itself execute the query that will load only 
the nodes for which the expression is true.
I saw a xalan integration in the code, possibly for the same purpose. Is 
there a way to extend jxpath with functionality that uses the model (or the 
nodepointer) itself to execute the rest of the query?

TIA,
Michael 



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