PartitionMapper (javax.batch-api 1.0-b25 API)

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javax.batch.api.partition
Interface PartitionMapper

public interface PartitionMapper

PartitionMapper receives control at the start of a partitioned execution. A PartitionMapper is responsible to provide unique batch properties for each partition.

Method Summary
`PartitionPlan`	`mapPartitions()` The mapPartitions method that receives control at the start of partitioned step processing.

Method Detail

mapPartitions

PartitionPlan mapPartitions()
                            throws Exception

The mapPartitions method that receives control at the start of partitioned step processing. The method returns a PartitionPlan, which specifies the batch properties for each partition.

Returns:: partition plan for a partitioned step.
Throws:: Exception - is thrown if an error occurs.