模式描述 meaning in Chinese
pattern description
patterndescription
Examples
- The key to realize the organized integration of various data sources is how to specify all kinds of data by a unique data schema and mask the heterogeneity of their platforms and data structure , etc . there are some shortage in existing data integration systems : complex conversion of any data schema to the common schema ; little integration about semistructured data ; lackness of interoperability in bottom level communication mechanism based on software component
实现数据无缝集成的关键和困难是如何以一种统一的数据模式描述各数据源中的数据，屏蔽它们的平台、数据结构等异构性。已有的数据集成技术，存在一些不足：公共模式同各数据源模式的转换工作繁杂；对结构化数据的支持较好，而半结构化数据不够重视，数据源参与集成的程度不高；基于软件组件的底层通信机制缺乏互操作性。 - The valid xml document has been bound to c + + structure with a new method of the structure - like space that is created from the base of the xml schema describing structure . the direct conversion between structure object and the xml document through calling the general interface functions of marshal ling and unmarshalling in c + + program
那么，在c + +中，只要从xml模式描述结构的基础出发，产生结构的xml模式表示，同时吸取了dom和sax表示xml数据的优点，运用类结构空间的新方法，我们实现了把有效的xml文档绑定到结构。 - Describes the observer pattern as defining " a one - to - many dependency between objects so that when one object changes state , all of its dependents are notified and updated automatically . " the observer pattern enables loose coupling of components ; components can keep their states synchronized without necessarily needing direct knowledge of each other s identities or internals , facilitating component reuse
）把观察者模式描述为：定义对象之间的“一对多”关系，这样一个对象改变状态时，所有它的依赖项都会被通知，并自动更新。观察者模式支持组件之间的松散耦合；组件可以保持它们的状态同步，却不需要直接知道彼此的标识或内部情况，从而促进了组件的重用。 - So it is solved not to describe the related - data query in standard sql . using rdsshd - xml db programmers only input all relevant connection information and proper sql statement about the query on the calling principle supplied by rdsshd - xml , they can perform their query in so simply way
为处理异构数据库的关联数据查询，课题利用了xml描述数据的优越性，设计了基于xml的查询模式，此模式描述了异构数据库查询的所有相关信息，解决了异构数据库的关联数据查询无法利用标准sql来描述的问题。