[jira] [Commented] (SCB-785) 补偿方法里无法获取分布式事务的全局事务ID及本地事务ID

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    [ https://issues.apache.org/jira/browse/SCB-785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16561144#comment-16561144 ] 

ASF GitHub Bot commented on SCB-785:
------------------------------------

jeremyxu2010 opened a new pull request #232: [SCB-785] 支持在补偿方法里得到当前分布式事务的全局事务ID及本地事务ID
URL: https://github.com/apache/incubator-servicecomb-saga/pull/232
 
 
   Improve 支持在补偿方法里得到当前分布式事务的全局事务ID及本地事务ID
   
   1. 补偿方法里通过omegaContext.globalTxId()和omegaContext.localTxId()可得到当前分布式事务的全局事务ID及本地
   事务ID
   
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> 补偿方法里无法获取分布式事务的全局事务ID及本地事务ID
> ----------------------------
>
>                 Key: SCB-785
>                 URL: https://issues.apache.org/jira/browse/SCB-785
>             Project: Apache ServiceComb
>          Issue Type: Improvement
>          Components: Saga
>    Affects Versions: saga-0.2.0
>            Reporter: Jeremy Xu
>            Priority: Minor
>
> 因为在子事务业务处理方法中会将一部分中间数据存入外部缓存中，对应的补偿方法将可以通过这些中间数据进行合理的补偿操作，当时存入中间数据时会附带上globalTxId, localTxId，后面将根据这个查找到之前存入的中间数据。但发现在业务方法中可以获取分布式事务的全局事务ID及本地事务ID，但对应的补偿方法里却不行。示例代码如下：
>  
> {code:java}
> @Autowired
> OmegaContext omegaContext;
> @Compensable(timeout=5, compensationMethod="cancel")
> public boolean transferOut(String from, int amount) {
>   // 这里可以获得
>   System.out.println(omegaContext.globalTxId());
>   System.out.println(omegaContext.localTxId());
>   repo.reduceBalanceByUsername(from, amount);
> }
> public boolean cancel(String from, int amount) {
>   // 这里不可以获得
>   System.out.println(omegaContext.globalTxId());
>   System.out.println(omegaContext.localTxId());
>   repo.addBalanceByUsername(from, amount);
> }
> {code}
>  



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