Class ChunkOrientedTasklet<I>

Type Parameters:
I - input item type
All Implemented Interfaces:

public class ChunkOrientedTasklet<I> extends Object implements Tasklet
A Tasklet implementing variations on read-process-write item handling.
Dave Syer, Mahmoud Ben Hassine
  • Constructor Details

  • Method Details

    • setBuffering

      public void setBuffering(boolean buffering)
      Flag to indicate that items should be buffered once read. Defaults to true, which is appropriate for forward-only, non-transactional item readers. Main (or only) use case for setting this flag to false is a transactional JMS item reader.
      buffering - indicator
    • execute

      @Nullable public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception
      Description copied from interface: Tasklet
      Given the current context in the form of a step contribution, do whatever is necessary to process this unit inside a transaction. Implementations return RepeatStatus.FINISHED if finished. If not they return RepeatStatus.CONTINUABLE. On failure throws an exception.
      Specified by:
      execute in interface Tasklet
      contribution - mutable state to be passed back to update the current step execution
      chunkContext - attributes shared between invocations but not between restarts
      an RepeatStatus indicating whether processing is continuable. Returning null is interpreted as RepeatStatus.FINISHED
      Exception - thrown if error occurs during execution.