基于XML业务无关的分布式数据库数据同步策略

Synchronized data strategy for independent distributed database based on XML

提出了一种新的基于XML标准的分布式数据库同步策略 .该策略首先构造基于XML标准的数据描述文件和业务数据库逻辑结构描述文件的接口层作为隔离层 .利用该接口层的描述性来合理分割业务的逻辑结构为单一的数据原子包 ,作为传输的基本单位 ,以满足不可靠网络连接下的数据同步操作要求 ;并利用接口的隔离性达到业务层与同步机制层具体实现的无关性 ,使该策略具有很高的通用性 ,能够满足复杂业务下的数据同步操作的要求 ;并进一步利用该接口层的业务数据和数据库逻辑结构的描述性特征来严密维护数据库的一致性 .

This paper proposed a synchronized data strategy for distributed database based on the XML standard. The description files of data and the transaction database logic structure were built which was the interface constructed according to the XML standard. By using the description feature of the interface the whole transaction was divided into indivisible data atom set. The set served as the basic unit in the synchronization making this strategy capable of being applied under an unstable network connection condition. By using the isolation feature of the interface, the implementation was separated from the real transaction. Through the constructed interface, the strategy can rigorously maintain the data consistence.