Interface Tasklet
- All Known Subinterfaces:
StoppableTasklet
- All Known Implementing Classes:
CallableTaskletAdapter
,ChunkOrientedTasklet
,MethodInvokingTaskletAdapter
,SystemCommandTasklet
public interface Tasklet
Strategy for processing in a step.
- Author:
- Dave Syer, Mahmoud Ben Hassine
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Method Summary
Modifier and TypeMethodDescriptionexecute
(StepContribution contribution, ChunkContext chunkContext) Given the current context in the form of a step contribution, do whatever is necessary to process this unit inside a transaction.
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Method Details
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execute
@Nullable RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception Given the current context in the form of a step contribution, do whatever is necessary to process this unit inside a transaction. Implementations returnRepeatStatus.FINISHED
if finished. If not they returnRepeatStatus.CONTINUABLE
. On failure throws an exception.- Parameters:
contribution
- mutable state to be passed back to update the current step executionchunkContext
- attributes shared between invocations but not between restarts- Returns:
- an
RepeatStatus
indicating whether processing is continuable. Returningnull
is interpreted asRepeatStatus.FINISHED
- Throws:
Exception
- thrown if error occurs during execution.
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