javax.batch.api.partition
Class AbstractPartitionReducer

java.lang.Object
  javax.batch.api.partition.AbstractPartitionReducer

All Implemented Interfaces:

PartitionReducer

public abstract class AbstractPartitionReducer
extends Object
implements PartitionReducer

The AbstractBatchlet provides default implementations of optional methods.

Nested Class Summary

Nested classes/interfaces inherited from interface javax.batch.api.partition.PartitionReducer

PartitionReducer.PartitionStatus

Constructor Summary

AbstractPartitionReducer()

Method Summary

void	afterPartitionedStepCompletion(PartitionReducer.PartitionStatus status) Optional method.
void	beforePartitionedStepCompletion() Optional method.
void	beginPartitionedStep() Optional method.
void	rollbackPartitionedStep() Optional method.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractPartitionReducer

public AbstractPartitionReducer()

Method Detail

beginPartitionedStep

public void beginPartitionedStep()
                          throws Exception

Optional method. Implement this method to take action before partitioned step processing begins.

Specified by:

beginPartitionedStep in interface PartitionReducer

Throws:

Exception - is thrown if an error occurs.

beforePartitionedStepCompletion

public void beforePartitionedStepCompletion()
                                     throws Exception

Optional method. Implement this method to take action before normal partitioned step processing ends.

Specified by:

beforePartitionedStepCompletion in interface PartitionReducer

Throws:

Exception - is thrown if an error occurs.

rollbackPartitionedStep

public void rollbackPartitionedStep()
                             throws Exception

Optional method. Implement this method to take action when a partitioned step is rolling back.

Specified by:

rollbackPartitionedStep in interface PartitionReducer

Throws:

Exception - is thrown if an error occurs.

afterPartitionedStepCompletion

public void afterPartitionedStepCompletion(PartitionReducer.PartitionStatus status)
                                    throws Exception

Optional method. Implement this method to take action after partitioned step processing ends.

Specified by:

afterPartitionedStepCompletion in interface PartitionReducer

Parameters:

status - specifies the outcome of the partitioned step. Values are "COMMIT" or "ROLLBACK".

Throws:

Exception - is thrown if an error occurs.