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seata-go/pkg/saga
lxfeng1997 d51b344002
change the StateLangStore type (#812) 		4 months ago
..
statemachine change the StateLangStore type (#812) 4 months ago
config.go [Refactor] Migrate StateMachineObject to client/config and unify config parsing with koanf (#785) 6 months ago
readme.md feature: init saga framework (#635) 1 year ago

readme.md

seata saga

未来计划有三种使用方式

  • 基于状态机引擎的 json
    link: statemachine_engine#Start
  • stream builder
    stateMachine.serviceTask().build().Start
  • 二阶段方式saga，类似tcc使用

上面1、2是以来statemachine，状态机引擎实现的，3相对比较独立。

状态机的实现在：saga-statemachine包中
其中statelang是状态机语言的解析，目前实现的是json解析方式，状态机语言可以参考：
https://seata.io/docs/user/mode/saga

状态机json执行的入口类是：statemachine_engine.go

下面简单说下engine中各个包的作用：
events：saga的是基于事件处理的，其中是event、eventBus的实现
expr：表达式声明、解析、执行
invoker：声明了serviceInvoker、scriptInvoker等接口、task调用管理、执行都在这个包中，例如httpInvoker
process_ctrl：状态机处理流程：上下文、执行、事件流转
sequence：分布式id
store：状态机存储接口、实现
status_decision：状态机状态决策

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Go Implementation For Seata

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