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Posted to j-users@xerces.apache.org by randy locklair <rl...@sasiny.com> on 2002/12/02 19:17:47 UTC
selecting from DOM tree by XPath
All:
I have a question which may be a very good one or a very bad one :) Is
there any way now, in the Xerces API (or some other open source
library), to select a node by XPath? For example:
Lets say you have a document..
Document docTest = // whatever;
Is there a way to do something like:
Node nodeSearch = docTest.searchByXPath("/root/child1/child2/element4");
(or I guess maybe it would return a NamedNodeMap or something since
there could be more than one element in that case?)
Let me know..
If there's not I might give it a shot writing one.
Thanks,
Randy
"Swiss American Securities Inc. MMS <sasiny.com>" made the following
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Re: selecting from DOM tree by XPath
Posted by randy locklair <rl...@sasiny.com>.
Joseph and Dana:
Thanks for your responses. They have been very helpful! :)
-Randy
"Swiss American Securities Inc. MMS <sasiny.com>" made the following
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Re: selecting from DOM tree by XPath
Posted by Joseph Kesselman <ke...@us.ibm.com>.
I believe Xerces was considering implementing the DOM Level 3 XPath API
as part of its DOM3 prototype. I'm not sure what the current status is, or
whether Xerces is using its own XPath engine vs. calling Xalan to do the
work.
Xalan now includes a prototype of the DOM XPath API which can be applied
against any DOM, including Xerces. It isn't maximally efficient (we have
some known performance issues running XPaths against DOMs at this time),
and it has one or two known departures from the standard (mostly in the
area of navigation relative to namespace nodes, which almost nobody
actually cares about) but it should work.
______________________________________
Joe Kesselman / IBM Research
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