Package javax.batch.api.chunk

Class AbstractItemWriter

java.lang.Object

javax.batch.api.chunk.AbstractItemWriter

All Implemented Interfaces:

ItemWriter

public abstract class AbstractItemWriter
extends Object
implements ItemWriter

The AbstractItemWriter provides default implementations of not commonly implemented methods.

Constructor Summary

Constructors

Constructor	Description
AbstractItemWriter()

Method Summary

Modifier and Type	Method	Description
Serializable	checkpointInfo()	Override this method if the ItemWriter supports checkpoints.
void	close()	Override this method if the ItemWriter requires any close time processing.
void	open(Serializable checkpoint)	Override this method if the ItemWriter requires any open time processing.
abstract void	writeItems(List<Object> items)	Implement write logic for the ItemWriter in this method.

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractItemWriter

public AbstractItemWriter()

Method Details

open

public void open(Serializable checkpoint)
          throws Exception

Override this method if the ItemWriter requires any open time processing. The default implementation does nothing.

Specified by:

open in interface ItemWriter

Parameters:

last - checkpoint for this ItemReader

Throws:

Exception - (or subclass) if an error occurs.

close

public void close()
           throws Exception

Override this method if the ItemWriter requires any close time processing. The default implementation does nothing.

Specified by:

close in interface ItemWriter

Throws:

Exception - (or subclass) if an error occurs.

writeItems

public abstract void writeItems(List<Object> items)
                         throws Exception

Implement write logic for the ItemWriter in this method.

Specified by:

writeItems in interface ItemWriter

Parameters:

items - specifies the list of items to write.

Throws:

Exception - (or subclass) if an error occurs.

checkpointInfo

public Serializable checkpointInfo()
                            throws Exception

Override this method if the ItemWriter supports checkpoints. The default implementation returns null.

Specified by:

checkpointInfo in interface ItemWriter

Returns:

checkpoint data

Throws:

Exception - (or subclass) if an error occurs.