ItemWriteListener (Spring Batch 4.1.4.RELEASE API)

All Superinterfaces:
StepListener
All Known Implementing Classes:
CompositeItemWriteListener, DefaultItemFailureHandler, ItemListenerSupport, ItemWriteListenerAdapter, MulticasterBatchListener, StagingItemListener, StepListenerSupport
```
public interface ItemWriteListener<S>
extends StepListener
```
Listener interface for the writing of items. Implementations of this interface will be notified before, after, and in case of any exception thrown while writing a list of items.
Note: This listener is designed to work around the lifecycle of an item. This means that each method should be called once within the lifecycle of an item and in fault tolerant scenarios, any transactional work that is done in one of these methods would be rolled back and not re-applied. Because of this, it is recommended to not perform any logic using this listener that participates in a transaction.
Author:
Lucas Ward

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`afterWrite(java.util.List<? extends S> items)`	Called after `ItemWriter.write(java.util.List)` This will be called before any transaction is committed, and before `ChunkListener.afterChunk(ChunkContext)`
`void`	`beforeWrite(java.util.List<? extends S> items)`	Called before `ItemWriter.write(java.util.List)`
`void`	`onWriteError(java.lang.Exception exception, java.util.List<? extends S> items)`	Called if an error occurs while trying to write.

- Method Detail
  - beforeWrite
```
void beforeWrite(java.util.List<? extends S> items)
```
    Called before ItemWriter.write(java.util.List)
    Parameters:
    items - to be written
  - afterWrite
```
void afterWrite(java.util.List<? extends S> items)
```
    Called after ItemWriter.write(java.util.List) This will be called before any transaction is committed, and before ChunkListener.afterChunk(ChunkContext)
    Parameters:
    items - written items
  - onWriteError
```
void onWriteError(java.lang.Exception exception,
                  java.util.List<? extends S> items)
```
    Called if an error occurs while trying to write. Will be called inside a transaction, but the transaction will normally be rolled back. There is no way to identify from this callback which of the items (if any) caused the error.
    Parameters:
    exception - thrown from ItemWriter
    items - attempted to be written.