基于WS-C/T协议的Web服务业务事务处理研究与实现-《计算机技术与发展》

文章信息/Info

Title:: Research and Implementation of Web Services Business Activity Based on WS-C/T Protocol

Author(s):: HE Yan; GUAN You-qing; Institute of Information Network Technology,College of the Internet of Things,Nanjing University of Posts and Telecommunications

Keywords:: Web services business activity; compensation; coordination; WS-C/T protocol

摘要:: 与原子事务严格遵循ACID特性相比,Web服务业务事务具有异构、分布式、长时间运行、松耦合的特点。它允许参与者独立提交,并使用补偿操作来撤销已提交的子事务所带来的影响。针对传统事务处理模型不适合处理业务事务的情形,设计一个基于WS-C/T协议的Web服务业务事务处理原型系统,把用于协调的WS-C协议和用于业务事务处理的WS-BA协议相结合来实现Web服务的组合应用。业务事务处理系统主要由客户端、协调者和参与者三个部分组成,客户端发起业务事务,协调者和参与者提供业务事务协调与处理接口,实现业务事务一致性。最后通过一个业务事务应用实例,验证了原型系统的可行性,它具有协调和补偿能力

Abstract:: Compared with atomic transactions which comply with ACID properties,Web services business activity is heterogeneous,distributed,long running,loosely coupled.It allows participants to commit independently and undo committed sub-transactions by means of compensation.As traditional transaction mechanisms do not meet the requirements of business activity,a prototype system is designed of processing the Web services business activity based on WS-C/T protocol.To realize the application of Web services,it integrates WS-C protocol used in Web services coordination and WS-BA protocol used in processing of business activity.The system involves clients,coordinators and participants,clients initiating the business activity,the two others cooperating to provide the interfaces for coordination and process in order to realize the consistency of business activity.To verify the prototype system,an example is cited of Web services business activity with capability of compensation