From the documentation I have, I understand that for each database ( Oracle, MySql, ....) JBoss must know it to provide some performance and optimizing mechanism. Is that correct or does the vendor of a DB supply JBoss, let me say, drivers?
So, the question is:
What datasource-mapping's does JBos3.0.0 currently support?
It is not really a opmization issue. Each database supports different functions, types, true/fals mappings etc.
The mappings are supplied by the users of JBoss, the dirvers come from vendors.
You can see all of the current mappings in the standardjbosscmp-jdbc.xml file in server/<server-name>/conf directory of the 3.0 release.