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- Using design patterns improves the code reusability and extensibility in data persistence layer design effectively. 此设计模式的使用可提高数据持久层设计中代码的可重用性和可扩展性。
- In contrast with other techniques,JDO can greatly improve the efficiency of the design of data persistence layer. 实践证明,与其他技术相比,该技术大大提高了数据持久层设计的效率。
- The responsibility of author is to research and realize EJB container in terms of EJB specification, specially to develop a solution of J2EE data persistence layer. 本文作者在EJB规范的基础上，进行了EJB容器的研究和实现。 着重关注于J2EE数据持久层的解决方案，力图完成Java数据对象的轻量级封装策略的研究和实现。
- data persistent layer 数据持久层
- This thesis use data access object design pattern to obtain an abstraction separating business layer from persistent layer and use DTO design pattern to implement a JDBC-based framework. 因此,本文首先采用数据访问对象模式抽象对持久层的访问,并在此基础上运用DTO(Data Transfer Obiect)数据访问方式,给出了基于JDBC的持久层框架设计。
- data persistence layer 数据持久层
- Institute of Artificial Intelligence, Zhejiang University has designed and developed an Object-Oriented Database Management System(OODB),ONet ,which is used for the space data storage of GIS and data persistent of IDSS. 浙江大学智能软件实验室自行设计开发了面向对象数据库系统ONet,用于支持地理信息系统的空间数据存储和智能决策系统的数据持久化,取得了初步的成功。
- The logistic material order system in army will be designed and realized with synthetic adoption of EJB, JSP/Servlet and data persistent technology, on the basement of J2EE multiple-level structure and MVC model. 部队后勤物资统购系统基于J2EE多层构架体系和MVC模式,综合应用EJB组件、JSP/Servlet、数据持久化等技术设计并实现;
- The LowFareAir Web application follows the standard 3-tier design model consisting of a presentation layer, business logic and control layer, and a data or persistence layer. LowFareAir Web应用程序遵从标准的3层设计模型,由表示层、业务逻辑和控制层和数据或持久层组成。
- Hibernate is an open source and lightweight level data persistence ORM tool. Hibernate是一个开放源代码的对象关系映射工具,是一个轻量级的数据持久化工具。
- Design of Object Persistent Layer 对象持久层的设计
- Remember that good design and a clear definition of the attributes are just as important as the Persistent classes in achieving successful data persistence. 请记住,在实现成功的数据持久性时,好的设计和属性的清晰定义与Persistent类同等重要。
- In application based on Java and RDBMS,object/relational mapping can be used to build object persistence layer to simplify Java database access. 在基于Java和关系型数据库的应用中,利用对象/关系映射机制构建对象持久层,可简化Java数据库访问。
- This is a small price to pay for a convenient, pre-built class that will handle data persistence for you. 对于掌握处理持久数据的方便的预制类而言,这只是很小的代价。
- Object caching: As the name indicates, this functionality enables object/data caching to improve performance in the persistence layer. 对象缓存：同名所示，这个功能将对象或数据缓存来提高持久层的性能。
- Databases are excellent for storing data persistently, but storing transient data and notifying us when the data has changed is not their strength. 数据库在持久存储数据方面是非常优秀的,但是存储瞬时数据并在数据改变时通知我们却不是它们的长处。
- In computing, CRUD is an acronym for create, retrieve, update, and delete.It is used to refer to the basic functions of a database or persistence layer in a software system. 在从事计算机工作中，CRUD 是Create,Retrieve,Update,Delete这几个单词的首写字母，用来代指数据库的基本增删改查操作或者一个软件系统中的持久层的基本操作。
- To get the best out of JDBC in enterprise environments, architects need to analyze the data in their enterprise and evolve a framework for data persistence. 为了在企业环境中最有效地使用JDBC,架构设计人员需要分析其企业中的数据,并开发一个用于数据持久性的框架。
- Data persistence can be defined as a contract, negotiated between a program and a storage device, that specifies how data are to be stored and retrieved. 可以将数据持久性定义为程序和存储设备之间达成的契约,该契约指定如何存储和检索数据。
- The persistent data layer is aptly provided by the Derby database. 持久数据层可以适当地由Derby数据库提供。
