ChunkListener (Spring Batch 4.1.4.RELEASE API)

所有超级接口:
StepListener
所有已知实现类:
ChunkListenerAdapter, ChunkListenerSupport, CompositeChunkListener, MulticasterBatchListener, PartitionCollectorAdapter, StagingItemListener, StepListenerSupport
```
public interface ChunkListener
extends StepListener
```
Listener interface for the lifecycle of a chunk. A chunk can be thought of as a collection of items that will be committed together.
作者:
Lucas Ward, Michael Minella, Mahmoud Ben Hassine

字段概要
字段
修饰符和类型字段说明
static java.lang.String ROLLBACK_EXCEPTION_KEY

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`void`	`afterChunk(ChunkContext context)`	Callback after the chunk is executed, outside the transaction.
`void`	`afterChunkError(ChunkContext context)`	Callback after a chunk has been marked for rollback.
`void`	`beforeChunk(ChunkContext context)`	Callback before the chunk is executed, but inside the transaction.

- 字段详细资料
  - ROLLBACK_EXCEPTION_KEY
```
static final java.lang.String ROLLBACK_EXCEPTION_KEY
```
    另请参阅:
    常量字段值
- 方法详细资料
  - beforeChunk
```
void beforeChunk(ChunkContext context)
```
    Callback before the chunk is executed, but inside the transaction.
    参数:
    context - The current ChunkContext
  - afterChunk
```
void afterChunk(ChunkContext context)
```
    Callback after the chunk is executed, outside the transaction.
    参数:
    context - The current ChunkContext
  - afterChunkError
```
void afterChunkError(ChunkContext context)
```
    Callback after a chunk has been marked for rollback. It is invoked after transaction rollback. While the rollback will have occurred, transactional resources might still be active and accessible. Due to this, data access code within this callback will still "participate" in the original transaction unless it declares that it runs in its own transaction. Hence: Use PROPAGATION_REQUIRES_NEW for any transactional operation that is called from here.
    参数:
    context - the chunk context containing the exception that caused the underlying rollback.