RE: Does jBoss work on iSeries?

Nathan,

EJBs have certainly improved and aggregation is one area that
improvements were made but your example is where a lighter weight API
like Hibernate or iBatis will perform much better. In general, you don't
persist summarized data back to the original data model so EJBs are not
helpful in this case although they will seriously impact performance.
You can run into this situation with Hibernate but you don't have to
leave the API to fix the performance problem.

David Morris

>>> nandel@xxxxxxxxxxxxxxxxxxx 3/9/2004 9:36:41 AM >>>
David,

...Say a Servlet receives a request to summarize sales by state and
display the
results.  The process of summarizing sales by state may be a fairly
CPU
intensive activity that needs to be synchronized per user.  Using
EJBs,
summarizing sales by state might be dispatched to one processor, while
generating the HTML might be dispatched to another, so that when
multiple
requests are received at the same time, the 2nd isn't waiting for the
1st to
complete...

Nathan.