org.springframework.batch.core.listener
Class ItemListenerSupport

java.lang.Object
  org.springframework.batch.core.listener.ItemListenerSupport

All Implemented Interfaces:

ItemReadListener, ItemWriteListener, StepListener

Direct Known Subclasses:

DefaultItemFailureHandler

public class ItemListenerSupport
extends Object
implements ItemWriteListener, ItemReadListener

Basic no-op implementation of both the ItemWriteListener and ItemReadListener interfaces. Both are implemented, since it is very common that both may need to be implemented at once.

Author:

Lucas Ward

Constructor Summary

ItemListenerSupport()

Method Summary

void	afterRead(Object item) Called after ItemReader.read()
void	afterWrite(Object item) Called after ItemWriter.write(Object) If the item is last in a chunk, this will be called before any transaction is committed, and before ChunkListener.afterChunk()
void	beforeRead() Called before ItemReader.read()
void	beforeWrite(Object item) Called before ItemWriter.write(Object)
void	onReadError(Exception ex) Called if an error occurs while trying to write.
void	onWriteError(Exception ex, Object item) Called if an error occurs while trying to write.

Methods inherited from class java.lang.Object

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

Constructor Detail

ItemListenerSupport

public ItemListenerSupport()

Method Detail

afterWrite

public void afterWrite(Object item)

Description copied from interface: ItemWriteListener

Called after ItemWriter.write(Object) If the item is last in a chunk, this will be called before any transaction is committed, and before ChunkListener.afterChunk()

Specified by:

afterWrite in interface ItemWriteListener

Parameters:

item - written item

beforeWrite

public void beforeWrite(Object item)

Description copied from interface: ItemWriteListener

Called before ItemWriter.write(Object)

Specified by:

beforeWrite in interface ItemWriteListener

Parameters:

item - to be written

onWriteError

public void onWriteError(Exception ex,
                         Object item)

Description copied from interface: ItemWriteListener

Called if an error occurs while trying to write.

Specified by:

onWriteError in interface ItemWriteListener

Parameters:

ex - thrown from ItemWriter

item - attempted to be written.

afterRead

public void afterRead(Object item)

Description copied from interface: ItemReadListener

Called after ItemReader.read()

Specified by:

afterRead in interface ItemReadListener

Parameters:

item - returned from read()

beforeRead

public void beforeRead()

Description copied from interface: ItemReadListener

Called before ItemReader.read()

Specified by:

beforeRead in interface ItemReadListener

onReadError

public void onReadError(Exception ex)

Description copied from interface: ItemReadListener

Called if an error occurs while trying to write.

Specified by:

onReadError in interface ItemReadListener

Parameters:

ex - thrown from ItemWriter