org.onemind.commons.invoke
Class ReflectionWrapperInvocable

java.lang.Object
  org.onemind.commons.invoke.AbstractInvocable
      org.onemind.commons.invoke.ReflectionWrapperInvocable

All Implemented Interfaces:

Invocable

public class ReflectionWrapperInvocable
extends AbstractInvocable

An wrapper invocable that will use reflection to optionally use reflection for invocation if possible

Version:

$Id: ReflectionWrapperInvocable.java,v 1.4 2005/01/24 05:52:21 thlee Exp $ $Name: $

Author:

TiongHiang Lee (thlee@onemindsoft.org)

Constructor Summary

ReflectionWrapperInvocable(java.lang.Object obj)
Constructor

ReflectionWrapperInvocable(java.lang.Object obj, boolean useReflect)
Constructor

Method Summary

boolean	canInvoke(java.lang.String functionName, java.lang.Object[] args) whether the function can be invoke with the arguments
InvocableFunction	getFunction(java.lang.String functionName, java.lang.Object[] args) Get the function
java.lang.Object	invoke(java.lang.String functionName, java.lang.Object[] args) invoke the function with the arguments provided

Methods inherited from class org.onemind.commons.invoke.AbstractInvocable

addFunction, getFunction, getFunctions

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionWrapperInvocable

public ReflectionWrapperInvocable(java.lang.Object obj)

Constructor

Parameters:

obj - the wrappee

ReflectionWrapperInvocable

public ReflectionWrapperInvocable(java.lang.Object obj,
                                  boolean useReflect)

Constructor

Parameters:

obj - the wrappee

useReflect - whether to use reflection

Method Detail

canInvoke

public boolean canInvoke(java.lang.String functionName,
                         java.lang.Object[] args)

whether the function can be invoke with the arguments

Specified by:

canInvoke in interface Invocable

Overrides:

canInvoke in class AbstractInvocable

Parameters:

functionName - the function name

args - the arguments

Returns:

true if can invoke

getFunction

public InvocableFunction getFunction(java.lang.String functionName,
                                     java.lang.Object[] args)

Get the function

Specified by:

getFunction in interface Invocable

Overrides:

getFunction in class AbstractInvocable

Parameters:

functionName - the function name

args - the arguments

Returns:

the function, or null if the function cannot be found

invoke

public java.lang.Object invoke(java.lang.String functionName,
                               java.lang.Object[] args)
                        throws java.lang.Exception

invoke the function with the arguments provided

Specified by:

invoke in interface Invocable

Overrides:

invoke in class AbstractInvocable

Parameters:

functionName - the function name

args - the arguments

Returns:

the object returns from the invocation

Throws:

java.lang.Exception - if there's problem invoking the function