Bugs item #1745280, was opened at 2007-06-29 11:52
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: ntalamai (ntalamai)
Assigned to: Nobody/Anonymous (nobody)
Summary: selectSingleNode(String) searches from parent node
Initial Comment:
I don't know if this is a deliberate feature or if it is poorly documented in
the javadoc, but assume you have selected a non-parent element in an XML
Document. Doing selectNode(...) on this element will start looking for the
XPath expression from the root of the document. Consider the following simple
example:
<?xml version="1.0" encoding="UTF-8"?>
<repository last-edited="Mon Jun 25 17:34:48 BST 2007">
<atomic>
<name>atom01</name>
<compUnit>computationUnits.Calculator</compUnit>
</atomic>
<atomic>
<name>atom02</name>
<compUnit>computationUnits.Calculator</compUnit>
</atomic>
</repository>
SAXReader reader = new SAXReader();
Element root = reader.read(new File(fileName))
.getRootElement();
for(Object o: root.elements()){
Element e = (Element) o;
Node n = e.selectSingleNode("//name");
}
Node n will always be <name>atom01</name>, even when the currently selected
element is the 2nd <atomic> with <name> atom02. In fact the call
e.selectSingleNode("/repository/atomic/name") is always possiblem, while calling
e.selectSingleNode("/atomic/name") returns null.
If this is a deliberate behaviour, it should have been stated clearly in the
javadoc.
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