How to set an empty value using XPath?
- by Ricardo
Using this xml example:
<templateitem itemid="5">
<templateitemdata>%ARN%</templateitemdata>
</templateitem>
<templateitem itemid="6">
<templateitemdata></templateitemdata>
</templateitem>
I am using XPath to get and set Node values. The code I am using to get the nodes is:
private static Node ***getNode***(Document doc, String XPathQuery) throws XPathExpressionException
{
XPath xpath = XPathFactory.newInstance().newXPath();
XPathExpression expr = xpath.compile(XPathQuery);
Object result = expr.evaluate(doc, XPathConstants.NODESET);
NodeList nodes = (NodeList) result;
if(nodes != null && nodes.getLength() >0)
return nodes.item(0);
throw new XPathExpressionException("No node list found for " + XPathQuery);
}
To get %ARN% value: "//templateitem[@itemid=5]/templateitemdata/text()" and with the getNode method I can get the node, and then call the getNodeValue().
Besides getting that value, I would like to set templateitemdata value for the "templateitem[@itemid=6]" since its empty. But the code I use can't get the node since its empty. The result is null.
Do you know a way get the node so I can set the value?
