【摘要】 在对象-关系访问层设计时,将对象标识(OID)的生成过程封装在该层的对象标识管理器(OIDM)中,可以大大提高应用程序的可移植性。分析对象-关系访问层体系结构和OID生成策略,128位随机数算法生成的OID已不适应数据信息量不断增加和海量数据存储的需求。根据160位SHA-1算法的特性,将该算法应用于对象-关系访问层设计,分析其可行性,并给出算法应用的Java实现模型。更多还原

【Abstract】 When designing the object-relational access layer,encapsulating algorithm of generating object identifier(OID)in OIDM can improve the transplantable performance of application.Analyzing the architecture of object-relational access layer and OID generating strategies,128 bit random number algorithms is not adapted to the increment of the data processing and data storage.According to the characteristics of 160 bit SHA-1 algorithm,a new idea that applying it to object-relational access layer design is presented,followed by the implementation model of software in java.更多还原