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 Description

private static java.lang.Object[] EMPTY_ARRAY

private java.lang.reflect.Method method

Constructor Summary

Constructors
Constructor Description

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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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