On Mon, 2008-09-22 at 21:59 +0530, Saliya Ekanayake wrote:
> Hi,
>
> IIRC Axiom does not support the feature of creating an OMNode if it does not
> exist when queried using an XPath expression. Is this DOMUtil class that you
> have mention, the main class which is used to handle XPath in DOM? I mean is
> it the similar DOM version of AXIOMXPath class?
I do not thing so. AFAIU it is a cocoon helper class when working with
DOM.
>
> Modifying the existing selectSingleNode() method may introduce certain
> backward compatibility issues. So it would be better to come up with an
> overloaded method like selectSingleNode(OMElement root, boolean create).
> That way the exisiting method will equal to selectSingleNode(root, false).
Agree. Need to make the Xpath working for me before I can I provide such
a helper method.
thanks for your feedback.
salu2
> Thanks,
> Saliya
>
> On Mon, Sep 22, 2008 at 5:12 PM, Thorsten Scherler <
> [EMAIL PROTECTED]> wrote:
>
> > Hi all,
> >
> > I started to use AXIOM in Forrest to replace some old DOM code that is
> > still lurking around.
> >
> > Now I am trying to select a node with a given xpath:
> > ...
> > String xlocation = iterator.next();
> > AXIOMXPath xpath = new AXIOMXPath(xlocation);
> > OMElement injection = (OMElement)xpath.selectSingleNode(root);
> > ...
> > if(null==injection){
> > log.debug("Path is not already contained, "+
> > "so we need to create it.");
> > }
> > ...
> >
> > I searched a bit in the code but could not find any method that will
> > create a element if the xpath expression is not given. Well much like:
> >
> > http://cocoon.apache.org/2.1/apidocs/org/apache/cocoon/xml/dom/DOMUtil.html#selectSingleNode(org.w3c.dom.Node<http://cocoon.apache.org/2.1/apidocs/org/apache/cocoon/xml/dom/DOMUtil.html#selectSingleNode%28org.w3c.dom.Node>,
> > java.lang.String, org.apache.excalibur.xml.xpath.XPathProcessor) but only
> > for StAX/Axiom.
> >
> > I there something that I can reuse?
> >
> > If not, is there interest that I create a patch for AXIOMXPath and
> > implement this functionality?
> >
> > salu2
> > --
> > Thorsten Scherler thorsten.at.apache.org
> > Open Source Java consulting, training and solutions
> >
> >
>
>
--
Thorsten Scherler thorsten.at.apache.org
Open Source Java consulting, training and solutions
