org.springframework.cloud.task.batch.listener

Class EventEmittingItemProcessListener

java.lang.Object

org.springframework.cloud.task.batch.listener.EventEmittingItemProcessListener

All Implemented Interfaces:

org.springframework.batch.core.ItemProcessListener, org.springframework.batch.core.StepListener

public class EventEmittingItemProcessListener
extends Object
implements org.springframework.batch.core.ItemProcessListener

Provides informational messages around the ItemProcessListener of a batch job. The ItemProcessListener.beforeProcess(Object) of this listener is a no-op. ItemProcessListener.afterProcess(Object, Object) returns a message if an item was filtered (ItemProcessor returned null), if the result of the processor was equal to the input (via .equals), or if they were not equal. ItemProcessListener.onProcessError(Object, Exception) provides the exception via the BatchJobHeaders.BATCH_EXCEPTION message header.

Author:

Michael Minella, Glenn Renfro

Constructor Summary

Constructors

Constructor and Description
EventEmittingItemProcessListener(org.springframework.messaging.MessageChannel output)

Method Summary

Modifier and Type	Method and Description
void	afterProcess(Object item, Object result)
void	beforeProcess(Object item)
void	onProcessError(Object item, Exception e)

Methods inherited from class java.lang.Object

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

Constructor Detail

EventEmittingItemProcessListener

public EventEmittingItemProcessListener(org.springframework.messaging.MessageChannel output)

Method Detail

beforeProcess

public void beforeProcess(Object item)

Specified by:

beforeProcess in interface org.springframework.batch.core.ItemProcessListener

afterProcess

public void afterProcess(Object item,
                         Object result)

Specified by:

afterProcess in interface org.springframework.batch.core.ItemProcessListener

onProcessError

public void onProcessError(Object item,
                           Exception e)

Specified by:

onProcessError in interface org.springframework.batch.core.ItemProcessListener