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com.dangdang.ddframe.rdb.transaction.soft.tcc.TCCWorkflow Maven / Gradle / Ivy

/*
 * Copyright 1999-2015 dangdang.com.
 * 

* Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *

*/ package com.dangdang.ddframe.rdb.transaction.soft.tcc; /** * TCC工作流. * * @author zhangliang */ public enum TCCWorkflow { /** * 尝试执行业务. * *

完成所有业务检查(一致性)

*

预留必须业务资源(准隔离性)

*/ Try, /** * 确认执行业务. * *

真正执行业务

*

不作任何业务检查

*

只使用Try阶段预留的业务资源

*

Confirm操作满足幂等性

*/ Confirm, /** * 取消执行业务. * *

释放Try阶段预留的业务资源

*

Cancel操作满足幂等性

*/ Cancel }




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