Rollback Spring Batch Job

Question

Actually I jave a Job with several steps and two tasklets as follow:

@Bean
public Step stepItem() {
    return stepBuilderFactory.get("stepItem")
            .<Item, Item> chunk(10)
            .reader(itemReader())
            .processor(itemProcessor())
            .faultTolerant()
            .writer(itemWriter())
            .build();
}

@Bean
public Step deleteAllItemStep() {
    return stepBuilderFactory.get("deleteAllItemStep")
            .tasklet(itemStepDeleteAllTasklet())
            .build();
}

Here my custom tasklet

public class ItemStepDeleteAllTasklet implements Tasklet{

private ItemRepository itemRepository;

public ItemStepDeleteAllTasklet(ItemRepository itemRepository) {
    this.itemRepository = itemRepository;
}

@Override
public RepeatStatus execute(StepContribution stepContribution, ChunkContext chunkContext) throws Exception {
    itemRepository.deleteAllInBatch();
    return null;
}
}

This is my configuration with the main job.

@Configuration
@Import({BatchItemConfiguration.class, BatchCriticalComponentConfiguration.class})
public class BatchConfiguration {

@Autowired
private JobBuilderFactory jobBuilderFactory;

@Autowired
private Step stepCriticalComponent;

@Autowired
private Step stepItem;

@Autowired
private Step deleteAllItemStep;

@Autowired
private Step deleteAllCriticalComponentStep;

@Bean
public Job importJob(JobCompletionNotificationListener listener) {
    return jobBuilderFactory.get("importJob")
            .incrementer(new RunIdIncrementer())
            .listener(listener)
            .start(deleteAllCriticalComponentStep)
            .next(deleteAllItemStep)
            .next(stepItem).next(stepCriticalComponent)
            .build();
}

}

Actually if a step (stepItem or stepCriticalComponent) fails,data that is deleted by the tasklet is gone and I cannot recover it. Is there a way to do a rollback on the entire Job or a rollback before a specific step/tasklet?

Answer 1

There is no concept of a rollback of an entire job or step within Spring Batch. However, you can use a listener ( JobExecutionListener or StepExecutionListener ) to execute compensating logic to do a rollback by hand.