松耦合事件机理与实现

Mechanism of loosely coupled event and its realization

针对分布式系统中信息变化消息的通知问题,研究了松耦合事件在COM+对象之间通讯的方式,分析了松耦合事件的实现机理和架构,提出了松耦合事件系统"推"的消息通知方式,解决了"拉"方式中存在的时间浪费和时间延迟问题,给出了松耦合事件在VisualC++6.0中的实现方法,认为松耦合事件对于建立高质量的分布式应用系统具有重要作用。

Aiming at the inform means when information changes in distributed applications, this paper studied the communication method of the loose coupling event between COM+ objects,analyzed its realization mechanism and architecture,put forward the 'push' message inform method and solve the problems in 'pull'method,such as delay,timewaste etc,given out the realization means in Visual C++ 60,and pointed out the important functions of the loose coupling event in building highquality distributed applications.