Event Models in Distributed Event Based Systems

Principles and Applications of Distributed Event-Based Systems Pub Date : 1900-01-01 DOI:10.4018/978-1-60566-697-6.CH002

Rolando Blanco, P. Alencar

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引用次数: 35

Abstract

Applications are regularly developed by composing functionality encapsulated in units of computation. Depending on the type of system these units of computation, components for short, include modules, classes, and programs. The functionality provided by components can be composed by procedural abstraction and implicit invocation (Garlan & Shaw, 1994; Dingel et al., 1998; Notkin et al., 1993). When composing functionality by procedural abstraction, also referred to as explicit invocation, names that identify a component are statically bound to the component implementing the functionality. This is the case of a function in one module invoking another function in another module, or a program in one computer using a Remote Procedure Call (RPC) to invoke functionality implemented by a different program on another computer. In contrast, when composing functionality by implicit invocation, a component announces an event. This event announcement triggers the invocation of functionality implemented by another component. The component announcing the event may or may not be required to know the name nor location of the component triggered by the event. aBsTRaCT

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分布式事件系统中的事件模型

应用程序通常是通过组合封装在计算单元中的功能来开发的。根据系统的类型，这些计算单元(简称组件)包括模块、类和程序。组件提供的功能可以通过过程抽象和隐式调用组成(Garlan & Shaw, 1994;Dingel et al.， 1998;Notkin et al.， 1993)。当通过过程抽象(也称为显式调用)组合功能时，标识组件的名称被静态地绑定到实现该功能的组件。这是一个模块中的函数调用另一个模块中的另一个函数的情况，或者一台计算机中的程序使用远程过程调用(RPC)来调用由另一台计算机上的不同程序实现的功能。相反，当通过隐式调用组合功能时，组件会宣布一个事件。此事件公告触发对另一个组件实现的功能的调用。宣布该事件的组件可能需要也可能不需要知道由该事件触发的组件的名称和位置。摘要

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Principles and Applications of Distributed Event-Based Systems

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