org.apache.commons.jelly.xpath

Class XPathComparator

java.lang.Object

org.apache.commons.jelly.xpath.XPathComparator

All Implemented Interfaces:

Comparator

public class XPathComparator
extends Object
implements 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

Nested Classes

Modifier and Type	Class and Description
static class	XPathComparator.XPathSortException My own runtime exception in case something goes wrong with sort.

Constructor Summary

Constructors

Constructor and Description
XPathComparator()
XPathComparator(org.jaxen.XPath xpath, boolean descending)

Method Summary

Methods

Modifier and Type	Method and Description
int	compare(org.dom4j.Node n1, org.dom4j.Node n2)
int	compare(Object o1, Object o2)
protected Comparable	getComparableValue(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(Object o1,
          Object o2)

Specified by:

compare in interface Comparator

compare

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

getComparableValue

protected Comparable getComparableValue(Object value)

Turns the XPath result value into a Comparable object.