How to use

setStepExecutionAggregator

method

in

org.springframework.batch.core.partition.support.PartitionStep

step.setStepExecutionAggregator(aggregator);

@Test
public void testStepAggregator() throws Exception {
  step.setStepExecutionAggregator(new DefaultStepExecutionAggregator() {
    @Override
    public void aggregate(StepExecution result, Collection<StepExecution> executions) {
      super.aggregate(result, executions);
      result.getExecutionContext().put("aggregated", true);
    }
  });
  step.setStepExecutionSplitter(new SimpleStepExecutionSplitter(jobRepository, true, step.getName(), new SimplePartitioner()));
  step.setPartitionHandler(new PartitionHandler() {
    @Override
    public Collection<StepExecution> handle(StepExecutionSplitter stepSplitter, StepExecution stepExecution)
        throws Exception {
      return Arrays.asList(stepExecution);
    }
  });
  step.afterPropertiesSet();
  JobExecution jobExecution = jobRepository.createJobExecution("vanillaJob", new JobParameters());
  StepExecution stepExecution = jobExecution.createStepExecution("foo");
  jobRepository.add(stepExecution);
  step.execute(stepExecution);
  assertEquals(true, stepExecution.getExecutionContext().get("aggregated"));
}

step.setStepExecutionAggregator(aggregator);

step.setStepExecutionAggregator(aggregator);

step.setStepExecutionAggregator(aggregator);