Re: RAC vs. J2EE

IMO, you are mixing and matching metaphors - RAC does not compete with J2EE directly. Some areas of J2EE, however, tend to compete with basic RDBMS (and therefore Oracle). RAC simply extends the RDBMS capability in the areas of extreme scalability and high availability.

By the way, the RAC HA extension is in a way that typical J2EE environments will not attain without difficulty - at least clustering will be required.

The above is in direct conflict with your assertion that the "The benefits and features of the J2EE architecture are known and well understood ...". Indeed, the database industry has been at this for many years longer than the Java industry, is more mature, and is (in many ways) simpler and robust.

I'd strongly recommend reading the O'Reilly book "Better, Faster, Lighter Java" for a Java insider's view of J2EE and why it might not be suitable.

While I'm no slouch at Java and J2EE, I find much of the EJB side to be a very heavyweight duplication of database technology. Amusingly, several highly respected Java bitheads I've talked with have acknowledged that a significant reason for the creation of J2EE and JDBC was that they (the industry) did not understand databases, so they came up with an alternative they did understand.

lol/FGB Received on Wed Feb 16 2005 - 04:58:29 CST