Re: [PR] feature: Saga annotation [incubator-seata]

Mon, 05 Feb 2024 00:18:01 -0800 


leezongjie commented on PR #5300:
URL: https://github.com/apache/incubator-seata/pull/5300#issuecomment-1926436585

   
   新建saga注解：
   
   
![image](https://github.com/apache/incubator-seata/assets/18690851/768ae2e5-757a-4770-99d2-207553e13148)
   
   
   扩展SagaActionInterceptorParser，支持Saga-annotation切面解析器。
   
   
![image](https://github.com/apache/incubator-seata/assets/18690851/bf6912bd-4b23-46bf-ac19-8e8fcdca18ea)
   
   
   
扩展SagaActionInterceptorHandler，saga两阶段注解切面，继承自TccActionInterceptorHandler，覆盖重写了类型，参数生成，注解类部分方法。
   
   
![image](https://github.com/apache/incubator-seata/assets/18690851/e6985432-ab5b-4c7f-bafb-a9c0b7ef5fe6)
   
   
   
   seata-server扩展SagaAnnotationCore，执行SAGA-ANNOTATION的提交时忽略。
   
   
![image](https://github.com/apache/incubator-seata/assets/18690851/6cd4b890-d98d-4f65-ab29-3848c9c9faee)
   
   
   
扩展SagaAnnotationResourceManager，继承自TCCResourceManager，二阶段回滚复用tcc逻辑，主要是覆盖了branchCommit，执行空提交方法，实际上TC会忽略SAGA-ANNOTATION的提交过程，不会走到RM端。
   
   
![image](https://github.com/apache/incubator-seata/assets/18690851/6d6fb219-bb2e-4abc-9c56-0669954d80e4)
   
   
   
   
   
   
   


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