CORBA,DCOM和Java/RMI技术比较

The Comparison of CORBA,DCOM and Java/RMI

分布式对象技术主要是在分布式异构环境下建立应用系统框架和对象构件,在应用系统框架的支撑下,开发者可以将软件功能包装为更易管理和使用的对象,这些分布式对象可以跨越不同的软硬件平台进行互操作。现在比较流行的三种重要的分布对象技术,它们是OMG的公对象请求代理体系结构(CORBA),Microsoft的分布式组件对象模型(DCOM),以及JavaSoft的Java/远程方法调用(Java/RMI)。本文将从编程人员以及架构师的角度,分析比较这三种分布对象技术之间的区别以及它们各自的优缺点。

Distributed object technology mainly establishes application system skeleton and object components for a distributed heterogeneous network. Under the supports of the application system skeleton, developer can encapsulate the functions as an object, which can be managed and used more expediently. Those distributed objects in different platform can interoperate as a unified whole. At present, three of the most popular distributed object paradigms are OMG's Common Object Request Broker Architecture (CORBA), Microsoft's Distributed Component Object Model (DCOM) and JavaSoft's Java/Remote Method Invocation (Java/RMI). In this article, we will examine the differences between these three technologies, and appreciate the merits and innards of each of the distributed object technology from a programmer's standpoint and an architectural standpoint.