Hi William,
At 10:35 AM 4/17/00 -0400, you wrote:
>http://www.inprise.com/devsupport/appserver/faq/Availability_Scalability_Per
>formance.html
>
><extract>
>1. Parallelized access to Entity Beans. Other EJB containers have to
>"serialize" the call to the Entity bean which affects the scalability and
>performance. Without a POA like infrastructure your Entity Beans WILL NOT BE
>ABLE to service multiple client invocations simultaneously. That is a
>serious limitation if you are looking to service millions of concurrent
>transactions.
></extract>
I realize that these are not your words but I sure would be interested to
hear the justification for this statement. The POA does provide a good
infrastructure for managing server-side object life cycles and such (and I
agree that it is very useful in scaling to support millions of server-side
objects -- though similar non-CORBA-based mechanisms could be built to
achieve the same results). However, I do not see the connection between
the POA and optimistic locking of entity bean instances which the statement
appears to say cannot be accomplished without a POA-like
infrastructure. Hopefully, someone will educate me as to why this is a
valid statement.
Thanks,
Robert
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