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org.apache.commons.jxpath.functions
Class MethodFunction  

java.lang.Object
  org.apache.commons.jxpath.functions.MethodFunction

All Implemented Interfaces:

org.apache.commons.jxpath.Function

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public class MethodFunction

extends java.lang.Object

implements org.apache.commons.jxpath.Function

An XPath extension function implemented as an individual Java method.

Version:

$Revision: 1.11 $ $Date: 2004/02/29 14:17:44 $

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Field Summary
private static java.lang.Object[]	EMPTY_ARRAY
private  java.lang.reflect.Method	method

 

Constructor Summary

MethodFunction(java.lang.reflect.Method method)

 

Method Summary
java.lang.Object	invoke(org.apache.commons.jxpath.ExpressionContext context, java.lang.Object[] parameters)           Computes the value of the function.
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

method

private java.lang.reflect.Method method

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EMPTY_ARRAY

private static final java.lang.Object[] EMPTY_ARRAY

Constructor Detail

MethodFunction

public MethodFunction(java.lang.reflect.Method method)

Method Detail

invoke

public java.lang.Object invoke(org.apache.commons.jxpath.ExpressionContext context,
                               java.lang.Object[] parameters)

Description copied from interface: org.apache.commons.jxpath.Function

Computes the value of the function. Each implementation of Function is responsible for conversion of supplied parameters to the required argument types.

Specified by:

invoke in interface org.apache.commons.jxpath.Function

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toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

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