摘要
ＯＳＦ的分布式计算环境（ＤＣＥ）和ＯＭＧ的通用对象请求代理体系（ＣＯＲＢＡ）是当今中间件的两大主流技术．它们都能屏蔽分布式系统中存在的异构性，开发分布式应用程序．而且，它们将在很长的一段时间内共存下去．为了解决更高层的中间件平台之间的异构性，文中介绍了一些实现ＣＯＲＢＡ与ＤＣＥ互操作的研究工作，并讨论了在应用层基于应用对象——桥来实现ＤＣＥ与ＣＯＲＢＡ互操作的方法．首先，文中给出了桥的基本概念和３种不同形式：静态桥、请求桥和动态桥．然后介绍了实现桥的两项关键技术．最后描述了请求桥的原型设计和实现技术．
Middlewares are platforms to mask any heterogeneity which may exist in a distributed system. OSF's distribution computing environment(DCE) and OMG's common object request broker architecture (CORBA) are the two main platforms in use today and will continue to coexist for a long time. Some research work on implementing interoperation between CORBA and DCE is described in the paper. Here presented is an appication level approach, based on an application object bridge, to implement interworking between DCE and CORBA. A basic concept and three different types of bridge (static, on demand, and dynamic bridge) are discussed. Two key technologies involved in implementing an on demand bridge are described as well. Finally, a prototype of on demand bridge and its implementation technology are also given.
出处
《计算机研究与发展》
EI
CSCD
北大核心
1999年第3期325-330,共6页
Journal of Computer Research and Development
基金
国防科工委预研基金
