org.apache.commons.jxpath.functions

Class MethodFunction

java.lang.Object

org.apache.commons.jxpath.functions.MethodFunction

All Implemented Interfaces:

Function

public class MethodFunction
extends java.lang.Object
implements Function

An XPath extension function implemented as an individual Java method.

Version:

$Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.Object[]	EMPTY_ARRAY
private java.lang.reflect.Method	method

Constructor Summary

Constructors

Constructor and Description
MethodFunction(java.lang.reflect.Method method) Create a new MethodFunction.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	invoke(ExpressionContext context, java.lang.Object[] parameters) Computes the value of the function.
java.lang.String	toString()

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

EMPTY_ARRAY

private static final java.lang.Object[] EMPTY_ARRAY

Constructor Detail

MethodFunction

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

Create a new MethodFunction.

Parameters:

method - implementing Method

Method Detail

invoke

public java.lang.Object invoke(ExpressionContext context,
                               java.lang.Object[] parameters)

Description copied from interface: 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 Function

Parameters:

context - can be used to acquire the context in which the function is being evaluted.

parameters - function arguments

Returns:

Object result

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object