org.springframework.batch.core
Interface ChunkListener

All Superinterfaces:

StepListener

All Known Implementing Classes:

ChunkListenerSupport, CompositeChunkListener, MulticasterBatchListener, StepListenerSupport

public interface ChunkListener
extends StepListener

Listener interface for the lifecycle of a chunk. A chunk can be through of as a collection of items that will be committed together.

Author:

Lucas Ward, Michael Minella

Field Summary

static String

ROLLBACK_EXCEPTION_KEY

Method Summary

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.

Field Detail

ROLLBACK_EXCEPTION_KEY

static final String ROLLBACK_EXCEPTION_KEY

See Also:

Constant Field Values

Method Detail

beforeChunk

void beforeChunk(ChunkContext context)

Callback before the chunk is executed, but inside the transaction.

Parameters:

context - The current ChunkContext

afterChunk

void afterChunk(ChunkContext context)

Callback after the chunk is executed, outside the transaction.

Parameters:

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 run in its own transaction. Hence: Use PROPAGATION_REQUIRES_NEW for any transactional operation that is called from here.

Parameters:

context - the chunk context containing the exception that caused the underlying rollback.