基于CWM和EMF的数据库元数据处理

针对各种数据库元数据的异构问题，以及封装元数据的领域模型和存储元数据所需的表结构需要手工建立且工作量较大的问题，提出基于公共仓库元模型(CWM)和Eclipse模型化框架(EMF)的数据库元数据处理，其中包括数据库元数据的获取、封装、扩展、持久化等操作，以及领域模型的实现和表结构的生成。结果证明，基于CWM和EMF的数据库元数据处理能够解决数据库元数据的异构问题，免去手工构建领域模型和表结构的工作，减少了工作量。

Database Metadata Processing Based on CWM and EMF

In light of the heterogeneous of various database metadata as well as the field model to package metadata and the table structure to storage metadata require established by a mass of manual work, this paper puts forward database metadata processing based on Common Warehouse Metamodel(CWM) and Eclipse Modeling Framework(EMF), including getting, packaging, expansion, persistence and so on, as well as the realization of the field model and the generation of table structure. Results prove that database metadata processing based on CWM and EMF can solve the heterogeneous of database metadata and replace the manual work to build field model and table structure, and reduce the workload.