org.springframework.batch.core.partition.support
Class MultiResourcePartitioner

java.lang.Object
  org.springframework.batch.core.partition.support.MultiResourcePartitioner

All Implemented Interfaces:

Partitioner

public class MultiResourcePartitioner
extends Object
implements Partitioner

Implementation of Partitioner that locates multiple resources and associates their file names with execution context keys. Creates an ExecutionContext per resource, and labels them as {partition0, partition1, ..., partitionN}. The grid size is ignored.

Since:

2.0

Author:

Dave Syer

Constructor Summary

MultiResourcePartitioner()

Method Summary

Map<String,ExecutionContext>	partition(int gridSize) Assign the filename of each of the injected resources to an ExecutionContext.
void	setKeyName(String keyName) The name of the key for the file name in each ExecutionContext.
void	setResources(Resource[] resources) The resources to assign to each partition.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiResourcePartitioner

public MultiResourcePartitioner()

Method Detail

setResources

public void setResources(Resource[] resources)

The resources to assign to each partition. In Spring configuration you can use a pattern to select multiple resources.

Parameters:

resources - the resources to use

setKeyName

public void setKeyName(String keyName)

The name of the key for the file name in each ExecutionContext. Defaults to "fileName".

Parameters:

keyName - the value of the key

partition

public Map<String,ExecutionContext> partition(int gridSize)

Assign the filename of each of the injected resources to an ExecutionContext.

Specified by:

partition in interface Partitioner

Parameters:

gridSize - the size of the map to return

Returns:

a map from identifier to input parameters

See Also:

Partitioner.partition(int)