ItemStream.update 관련

9:46초경 ItemStream 프로세스 관련

 

- ItemStream.update() 메서드가 Chunk size만큼 반복된다고 나와 있는데

- TaskletStep의 doExecute() 메서드에서는 반복문 바깥에 stream.update() 메서드가 호출되어서 1번만 호출되는 것 같습니다

 

	@Override
	protected void doExecute(StepExecution stepExecution) throws Exception {
		stepExecution.getExecutionContext().put(TASKLET_TYPE_KEY, tasklet.getClass().getName());
		stepExecution.getExecutionContext().put(STEP_TYPE_KEY, this.getClass().getName());

		stream.update(stepExecution.getExecutionContext());
		getJobRepository().updateExecutionContext(stepExecution);

		// Shared semaphore per step execution, so other step executions can run
		// in parallel without needing the lock
		final Semaphore semaphore = createSemaphore();