org.apache.commons.pipeline.stage
Class InvokeMethodStage

java.lang.Object
  org.apache.commons.pipeline.stage.BaseStage
      org.apache.commons.pipeline.stage.InvokeMethodStage

All Implemented Interfaces:

Stage

public class InvokeMethodStage
extends BaseStage

Calls a method on the processed object giving it the arguments specified at the time of object construction.

Version:

$Id: InvokeMethodStage.java 3742 2006-08-28 16:50:23Z kjn $

Field Summary

Fields inherited from class org.apache.commons.pipeline.stage.BaseStage

context

Constructor Summary

InvokeMethodStage(Method method)
Creates a new instance of InvokeMethodStage

InvokeMethodStage(Method method, Object... arguments)
Creates a new instance of InvokeMethodStage

InvokeMethodStage(String className, String methodName, Object... arguments)
Creates a new instance of InvokeMethodStage from the class and method names.

Method Summary

Object[]	getArguments() Returns the objects being used to invoke this method
Method	getMethod() Returns the method to be accessed by processing
void	process(Object obj) Calls the specified method on the object being processed and exqueues the result

Methods inherited from class org.apache.commons.pipeline.stage.BaseStage

emit, emit, init, postprocess, preprocess, release

Methods inherited from class java.lang.Object

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

Constructor Detail

InvokeMethodStage

public InvokeMethodStage(Method method)

Creates a new instance of InvokeMethodStage

InvokeMethodStage

public InvokeMethodStage(Method method,
                         Object... arguments)

Creates a new instance of InvokeMethodStage

InvokeMethodStage

public InvokeMethodStage(String className,
                         String methodName,
                         Object... arguments)
                  throws ClassNotFoundException,
                         NoSuchMethodException

Creates a new instance of InvokeMethodStage from the class and method names.

Throws:

ClassNotFoundException

NoSuchMethodException

Method Detail

getMethod

public Method getMethod()

Returns the method to be accessed by processing

Returns:

the method

getArguments

public Object[] getArguments()

Returns the objects being used to invoke this method

Returns:

The objects being used

process

public void process(Object obj)
             throws StageException

Calls the specified method on the object being processed and exqueues the result

Specified by:

process in interface Stage

Overrides:

process in class BaseStage

Parameters:

obj - The object being processed.

Throws:

StageException - an Exception thrown by an overriding implementation should be wrapped in a StageException