January 1998
Intermediate to advanced
384 pages
10h 45m
English
Content preview from Java Distributed ComputingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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RMI vs. CORBA
In this chapter we’ve implemented the simple distributed compute engine using both CORBA and RMI, and we’ve seen many similarities between the two in terms of functionality. There are also some critical differences between the two technologies. In order for you to understand which distributed object scheme is right for whatever system you’re facing, it’s important to spell out these differences.
The Language Barrier: Advantage or Disadvantage?
As we mentioned before, RMI is a Java-centric distributed object system. The only way currently to integrate code written in other languages into a RMI system is to use the Java native-code interface to link a remote object implementation in Java to C or C++ code. This is a possibility, but definitely not something for the faint of heart. The native-code interface in Java is complicated, and can quickly lead to fragile or difficult-to-maintain code. CORBA, on the other hand, is designed to be language-independent. Object interfaces are specified in a language that is independent of the actual implementation language. This interface description can then be compiled into whatever implementation language suits the job and the environment.
This distinction is really at the heart of the split between the two technologies. RMI, as a Java-centric system, inherits all of the benefits of Java. An RMI system is immediately cross-platform; any subsystem of the distributed system can be relocated to any host that has a Java virtual machine ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.