Spring Batch 란?

• Spring Batch 란?
  • 손쉽게 "high-volume 배치작업"을 최적화 처리하는...
• Spring Batch 아키텍쳐
  
  • JobRepository
    
    • JobLauncher 
      
      • Job
        
        • Step
          • Tasklet
            • Chunk
              • ItemReader
              • ItemProcessor
              • ItemWriter
• Spring Batch Processing styles
  
  • 1) "Chunk" Oriented : "Chunk" is used when both reading and writing the data item is required.
  • 2) "Tasklet" Oriented : "TaskletStep" is used when either only reading or writing the data item is required.
• 설정
  • Spring Batch는 @EnableBatchProcessing 어노테이션으로 자동설정 가능함.
  • 기본적으로 해당 application context의 모든 Jobs이 실행 됨.
  • 물론, 'spring.batch.job.names' 를 통해서~ 특정 Job만을 실행 할 수 도있음.
  • ( If the application context includes a JobRegistry then, )
  • ( the jobs spring.batch.job.names are looked up in registry instead of being autowired from the context. )
  • ( This is a common pattern with more complex systems where multiple jobs are defined in child contexts and registered centrally. )
• Spring Batch 관련 테이블
  • BATCH_JOB_INSTANCE : 등록된 배치 작업.
  • BATCH_JOB_EXECUTION : 등록된 배치 작업의 실행 내역.
  • BATCH_JOB_EXECUTION_PARAMS : ...
  • BATCH_JOB_EXECUTION_CONTEXT : ...
  • BATCH_STEP_EXECUTION : 등록된 배치 작업의 Step별 실행 내역.
  • BATCH_STEP_EXECUTION_CONTEXT : ...

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