| 1. | The presence of this sid prompts a check on the resource domain to ensure that the user is allowed to authenticate to the particular service 此sid将提示对资源域进行检查,以确保用户能够对特定服务进行身份验证。 |
| 2. | For this reason , quarantined domains should be leaf domains , their child domains should be only resource domains that contain no user accounts , or the quarantined domain should be in a separate forest 因此,被隔离域应是叶域,其子域只应是不包含任何用户帐户的资源域,或者被隔离域位于不同的林中。 |
| 3. | ( 4 ) aiming at the heterogeneous data types and semantic in the water resources domain , a prototype based on the domain data integration platform is presented ( 4 )结合水利领域的特点,主要针对不同应用数据库之间存在的数据类型异构、语义异构等问题,给出了基于corba / xml的领域数据集成平台的开发实例。 |
| 4. | This paper discusses the issue of integrating water resources data using xml based on extensive analysis and research work . it is focus on the problems related with heterogeneous data schema and query processing in water resources domain 本文以水利领域数据现状和对数据集成的要求为基础,进行基于xml数据集成的研究,重点解决水利领域数据模式的异构问题和查询语言的转换问题。 |
| 5. | The main contributions of this paper are as follows : 1 . presents a platform framework based on xml for data integration in water resources domain : this platform framework adopts mediator - wrapper architecture and takes virtual view method 设计一个基于xml的水文数据集成平台框架:本文以典型的mediator - wrapper体系结构为平台框架结构,采用虚拟视图的方法,用xml描述局部数据源视图。 |
| 6. | Based on the characteristics of the applications in water resources information , an application framework , that is oriented to water resources domain , is presented and achieved in this paper . the technology of j2ee and ejb in water resources domain is introduced 本文针对水利信息化应用所具有的特点,为国家防汛指挥系统工程服务,将j2ee和ejb技术应用到水利领域,提出并实现了面向水利领域的应用框架。 |
| 7. | The significance of this paper is to implement the xml format views of rdbms , and design a platform framework to provide a uniform query service for heterogeneous data sources . our work can be used to build a uniform data accessing infrastructure in water resources domain 本文工作的意义在于解决了关系数据库的xml化问题,设计的平台框架提供统一查询异构数据源的服务,为在水利领域内部建立一个通用数据访问底层架构奠定基础。 |
| 8. | The architecture and related key technology in the framework are analyzed theoretically in detail . various technologies applied in water resources domain are also discussed in this paper , such as dynamic formation and publication of servlet and jsp , naming and directory services jndi , distributed object architecture ejb , database interface supported jdbc , methods dealing with heterogeneous databases and the relationship and collocation between layers in multi - layers architecture 同时侧重对其中的关键技术、体系结构进行理论分析,研究动态生成并发布servlet和jsp 、命名和日录服务jndi 、分布式对象体系结构ejb 、数据库接口支持jdbc和异构数据库的处理以及多层体系结构各层之间的联系和搭配等在水利领域的实际应用。 |
| 9. | There are some problems in the development of computer software in the water resources domain , such as a long period for development , high expense of maintenance , repeated development , etc . component - based software development is one of the effective methods to solve the problem , because it can improve the reuse of software 水利领域的计算机软件存在着开发周期长、维护费用高、重复开发等问题,应用软件构件技术,提高领域软件的复用程度,是解决这些问题的有效途径之一。 |