Research On Object-Relation Mapping Model

With the development of complexity and scale of modern software, thebusiness data have grown more and more. Many business systems are moredependent on relational database. In according to the wide using of object-orientedmethod in the front application, there must be a object-relation mapping mechanismto map the objects in the memory to the persistent relational database. Soobject-relation mapping has been an important part of business software. Aimed atthe storing contradiction that existed between the persistence object and therelational database, this paper analyzed a few popular ORM frameworks, researchedsome method of Object/Relation Mapping and its mechanism (Hibernate,JDO,Ibatis),proposed and implemented a framework of OR Mapping:Lorm. Such frame supportsOR Mapping, with which an application programmer could store objects in uniformand object-oriented method without concerning about how to implement on thebottom relational database, and it was improved the developing efficiencygreatly.The developing of applications based on Lorm framework which supportsSQL and JDBC is flexible and esay。Finally,a application of Blog was developedusing the Lorm Framework.