MethodInvokingTaskletAdapter (Spring Batch 4.1.4.RELEASE API)

java.lang.Object
- org.springframework.batch.item.adapter.AbstractMethodInvokingDelegator<java.lang.Object>
- - org.springframework.batch.core.step.tasklet.MethodInvokingTaskletAdapter

All Implemented Interfaces:
Tasklet, org.springframework.beans.factory.InitializingBean
```
public class MethodInvokingTaskletAdapter
extends AbstractMethodInvokingDelegator<java.lang.Object>
implements Tasklet
```
A Tasklet that wraps a method in a POJO. By default the return value is ExitStatus.COMPLETED 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, Mahmoud Ben Hassine
See Also:
AbstractMethodInvokingDelegator

Nested Class Summary
- Nested classes/interfaces inherited from class org.springframework.batch.item.adapter.AbstractMethodInvokingDelegator
  AbstractMethodInvokingDelegator.InvocationTargetThrowableWrapper

Constructor Summary
Constructors
Constructor Description
MethodInvokingTaskletAdapter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`RepeatStatus`	`execute(StepContribution contribution, ChunkContext chunkContext)`	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(java.lang.Object result)`	If the result is an `ExitStatus` already just return that, otherwise return `ExitStatus.COMPLETED`.

Methods inherited from class org.springframework.batch.item.adapter.AbstractMethodInvokingDelegator
afterPropertiesSet, getArguments, 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
  - MethodInvokingTaskletAdapter
```
public MethodInvokingTaskletAdapter()
```
- Method Detail
  - execute
```
public RepeatStatus execute(StepContribution contribution,
                            ChunkContext chunkContext)
                     throws java.lang.Exception
```
    Delegate execution to the target object and translate the return value to an ExitStatus by invoking a method in the delegate POJO. Ignores the StepContribution and the attributes.
    Specified by:
    execute in interface Tasklet
    Parameters:
    contribution - mutable state to be passed back to update the current step execution
    chunkContext - attributes shared between invocations but not between restarts
    Returns:
    an RepeatStatus indicating whether processing is continuable. Returning null is interpreted as RepeatStatus.FINISHED
    Throws:
    java.lang.Exception - thrown if error occurs during execution.
    See Also:
    Tasklet.execute(StepContribution, ChunkContext)
  - mapResult
```
protected ExitStatus mapResult(java.lang.Object result)
```
    If the result is an ExitStatus already just return that, otherwise return ExitStatus.COMPLETED.
    Parameters:
    result - the value returned by the delegate method
    Returns:
    an ExitStatus consistent with the result