Re: Java5 Xpath problem

"Oliver Wong" <>
Mon, 25 Sep 2006 15:32:08 GMT
"Moiristo" <> wrote in message

I am trying to evaluate an XML document using the javax.xml libraries,

    You're actually evaluating an XPath on an XML document, not the XML
document itself.

but I guess I'm doing something wrong. I need to get all 'layer'
attributes from the document.

    "layer" is an element, not an attribute.

To do this, I did this:

NodeList layers = (NodeList) path.evaluate("/root//layer",
<xml inputsource>, XPathConstants.NODESET);

Then, I need to use the elements within that layer. The code I use is:

for(int i = 0;i<layers.getLength();i++){
     Node layer = layers.item(i);
     lname = layer.getNextSibling().getNodeValue().trim();
     lsource = layer.getNextSibling().getNodeValue().trim();
     ldest = layer.getNextSibling().getNodeValue().trim();

It finds the layers within the document, but when I store the element
values in the for-loop, it stores empty strings (when I call
getNodeName(), it returns "#text"). Do I need to evaluate the expression
differently, because it seems like the elements within the layers aren't

As an example, a layer node:

    layer.getNextSibling(), which you call 3 times, will always return the
same node, and I don't think it's the node you want anyway. See

    - Oliver

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