Research And Application Of Community Information Management System Based On ORM

In information management systems, object-oriented method of data display and processing, data and processes are encapsulated into objects, making access to the data access objects into. At present, the vast majority of the relational model of data is stored in relational databases, object-oriented approach is not suitable for direct access. The main reason is the relationship between the relational database model and object-oriented methods of the object model needed to impedance mismatch between the problem. ORM technology can solve a good relationship exists between the model and object model does not match the problem.First,this paper introduces the concept of persistent data, a detailed analysis of the implementation of ORM principles and implementation. By. NET platform analysis and comparison of existing ORM products, combined with community information management system (CIMS) developed by the actual needs, choose to use the OpenAccess ORM as a development tool. Second,focusing on the OpenAccess ORM Fetch Plans and the secondary cache and other key technology analysis and research. And on this basis, the use of OpenAccess ORM tool designed and implemented a community-designed information management systems. Finally, for system development and application of the OpenAccess ORM problems are analyzed and discussed, and suggestions to improve methods for the problem, while system performance is tested, the test results validate the improved method is effective and practical.