| 浅析Observer模式在GIS软件设计中的应用 |
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| 引用本文： | 吴善明,沈建京,刘辉.浅析Observer模式在GIS软件设计中的应用[J].计算机工程与设计,2007,28(18):4532-4535. |
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| 作者姓名： | 吴善明 沈建京 刘辉 |
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| 作者单位： | 信息工程大学,理学院,河南,郑州,450001;78155部队,四川,成都,610036 |
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| 摘 要： | 面向对象方法仅仅从问题域的离散抽象很难达到高内聚和低耦合,设计模式的出现和广泛应用为解决这个问题提供了有效的方法.探讨了Observer模式的基本原理以及在GIS软件设计中的应用,并在具体实践中做了有益尝试.实践证明了设计模式在改善软件的灵活性和适应性方面所发挥的积极作用.
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| 关 键 词： | 面向对象 软件复用 设计模式 地理信息系统 观察者 |
| 文章编号： | 1000-7024（2007）18-4532-04 |
| 修稿时间： | 2006-09-09 |
Observer pattern and its application in GIS software design |
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| WU Shan-ming,SHEN Jian-jing,LIU Hui.Observer pattern and its application in GIS software design[J].Computer Engineering and Design,2007,28(18):4532-4535. |
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| Authors: | WU Shan-ming SHEN Jian-jing LIU Hui |
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| Affiliation: | Institute of Science, Information Engineering University, Zhengzhou 450001, China; 2. 78155 Troops, Chengdu 610036, China |
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| Abstract: | Object-oriented technique cannot achieve high cohesion and low coupling of software only by the discrete extraction from problem domains, while design patterns provide an effective way to solve this problem. The observer pattern's basic theory and its ap- plication in GIS software design are mainly discussed, the practice shows an active role that design pattern plays in the improvement of software flexibility and adaptability. |
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| Keywords: | object-oriented software reuse design patterns geographic information system observer |
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