org.mmbase.util.functions
Class MethodFunction

java.lang.Object
  org.mmbase.util.functions.AbstractFunction
      org.mmbase.util.functions.MethodFunction

All Implemented Interfaces:

Comparable, Function, Serializable

public class MethodFunction

extends AbstractFunction

A function based on an abritrary method. Since the name of the parameters cannot be found by reflection, this is only of limited use. Normally you would probably better use BeanFunction. A method-function can come in handy on JSP's.

Since:

MMBase-1.7

Version:

$Id: MethodFunction.java,v 1.4 2005/10/01 20:17:36 michiel Exp $

Author:

Michiel Meeuwissen

See Also:

MMObjectBuilder.executeFunction(org.mmbase.module.core.MMObjectNode, java.lang.String, java.util.List), Node.getFunctionValue(java.lang.String, java.util.List), BeanFunction, Serialized Form

Field Summary

Fields inherited from class org.mmbase.util.functions.AbstractFunction

name, returnType

Constructor Summary

MethodFunction(Method method, String name)

Method Summary

static Function	getFunction(Method method, String name)
Object	getFunctionValue(Parameters parameters) Executes the defined function supplying the given arguments.

Methods inherited from class org.mmbase.util.functions.AbstractFunction

compareTo, createParameters, equals, getDescription, getFunctionValueWithList, getName, getParameterDefinition, getReturnType, hashCode, setDescription, setParameterDefinition, setReturnType, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MethodFunction

public MethodFunction(Method method,
                      String name)

Method Detail

getFunction

public static Function getFunction(Method method,
                                   String name)

getFunctionValue

public Object getFunctionValue(Parameters parameters)

Description copied from class: AbstractFunction

Executes the defined function supplying the given arguments.

Specified by:

getFunctionValue in interface Function

Specified by:

getFunctionValue in class AbstractFunction

Parameters:

parameters - The parameters for the function. To specify an empty parameter list use Parameters.VOID. Implementors are encouraged to support null too.

Returns:

The function value, which can be of any type compatible to AbstractFunction.getReturnType()

See Also:

AbstractFunction.createParameters()