org.apache.commons.jelly.xpath
Class XPathComparator

java.lang.Object
  extended byorg.apache.commons.jelly.xpath.XPathComparator
All Implemented Interfaces:
java.util.Comparator

public class XPathComparator
extends java.lang.Object
implements java.util.Comparator

Compares xml nodes by extracting the value at xpath and comparing it.

Version:
$Id: XPathComparator.java 155420 2005-02-26 13:06:03Z dirkv $
Author:
Jason Horman

Nested Class Summary
static class XPathComparator.XPathSortException
          My own runtime exception in case something goes wrong with sort.
 
Constructor Summary
XPathComparator()
           
XPathComparator(org.jaxen.XPath xpath, boolean descending)
           
 
Method Summary
 int compare(org.dom4j.Node n1, org.dom4j.Node n2)
           
 int compare(java.lang.Object o1, java.lang.Object o2)
           
protected  java.lang.Comparable getComparableValue(java.lang.Object value)
          Turns the XPath result value into a Comparable object.
 org.jaxen.XPath getXpath()
           
 void setDescending(boolean descending)
           
 void setXpath(org.jaxen.XPath xpath)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.util.Comparator
equals
 

Constructor Detail

XPathComparator

public XPathComparator()

XPathComparator

public XPathComparator(org.jaxen.XPath xpath,
                       boolean descending)
Method Detail

setXpath

public void setXpath(org.jaxen.XPath xpath)

getXpath

public org.jaxen.XPath getXpath()

setDescending

public void setDescending(boolean descending)

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)
Specified by:
compare in interface java.util.Comparator

compare

public int compare(org.dom4j.Node n1,
                   org.dom4j.Node n2)

getComparableValue

protected java.lang.Comparable getComparableValue(java.lang.Object value)
Turns the XPath result value into a Comparable object.



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