jobBuilder add  .listener( new CustomJobExecutionListener () ) # before added @bean
 @Override beforeJob / afterJob
 
stepBuilder add .listener( new CustomStepExecutionListener () ) # before added @bean
 @Override	beforeStep / afterStep

stepBuilder add .listener ( new CustomChunkListener () )
 @Override beforeChunk / afterChunk / afterError
 
itemReader  implements [itemReader, itemReaderListener]
 @Override read    - itemReader
 @Override beforeRead / afterRead / afterError  -itemReaderListener
 
itemProcessor implements [itemProcessor , itemProcessorListener]
	@Override process - itemProcessor
	@Override beforeProcess / afterProcess / afterError - itemProcessorListener
	
itemWriter implements 	[... , ...]
	@Override write - ...
	@Override before ... / after ...