org.springframework.batch.core.step.tasklet
Class TaskletAdapter

java.lang.Object
  org.springframework.batch.item.adapter.AbstractMethodInvokingDelegator
      org.springframework.batch.core.step.tasklet.TaskletAdapter

All Implemented Interfaces:

Tasklet, InitializingBean

public class TaskletAdapter
extends AbstractMethodInvokingDelegator
implements Tasklet

A Tasklet that wraps a method in a POJO. By default the return value is ExitStatus.FINISHED unless the delegate POJO itself returns an ExitStatus. The POJO method is usually going to have no arguments, but a static argument or array of arguments can be used by setting the arguments property.

Author:

Dave Syer

See Also:

AbstractMethodInvokingDelegator

Constructor Summary

TaskletAdapter()

Method Summary

ExitStatus	execute() Delegate execution to the target object and translate the return value to an ExitStatus by invoking a method in the delegate POJO.
protected ExitStatus	mapResult(Object result) If the result is an ExitStatus already just return that, otherwise return ExitStatus.FINISHED.

Methods inherited from class org.springframework.batch.item.adapter.AbstractMethodInvokingDelegator

afterPropertiesSet, invokeDelegateMethod, invokeDelegateMethodWithArgument, invokeDelegateMethodWithArguments, setArguments, setTargetMethod, setTargetObject

Methods inherited from class java.lang.Object

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

Constructor Detail

TaskletAdapter

public TaskletAdapter()

Method Detail

execute

public ExitStatus execute()
                   throws Exception

Delegate execution to the target object and translate the return value to an ExitStatus by invoking a method in the delegate POJO.

Specified by:

execute in interface Tasklet

Returns:

ExitStatus indicating success or failure

Throws:

Exception

See Also:

Tasklet.execute()

mapResult

protected ExitStatus mapResult(Object result)

If the result is an ExitStatus already just return that, otherwise return ExitStatus.FINISHED.

Parameters:

result - the value returned by the delegate method

Returns:

an ExitStatus consistent with the result