Package org.springframework.batch.core.partition.support

Class SimplePartitioner

java.lang.Object

org.springframework.batch.core.partition.support.SimplePartitioner

All Implemented Interfaces:

Partitioner

public class SimplePartitioner
extends Object
implements Partitioner

Simplest possible implementation of Partitioner. Just creates a set of empty ExecutionContext instances, and labels them as {partition0, partition1, ..., partitionN}, where N is the grid size - 1.

Since:

2.0

Author:

Dave Syer

Constructor Summary

Constructors

Constructor	Description
SimplePartitioner()

Method Summary

Modifier and Type	Method	Description
Map<String,ExecutionContext>	partition(int gridSize)	Create a set of distinct ExecutionContext instances together with a unique identifier for each one.

Methods inherited from class java.lang.Object

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

Constructor Details

SimplePartitioner

public SimplePartitioner()

Method Details

partition

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

Description copied from interface: Partitioner

Create a set of distinct ExecutionContext instances together with a unique identifier for each one. The identifiers should be short, mnemonic values, and only have to be unique within the return value (e.g. use an incrementer).

Specified by:

partition in interface Partitioner

Parameters:

gridSize - the size of the map to return

Returns:

a map from identifier to input parameters