is there any JMS implementation which could be embeded into web application?

[raminaa niilian]

Hi
Thank you for reading my post.
Is there any JMS implementation that can be embed into web application ?
I mean all of its component becom into web application , i have no acceess to change the server tomcat server.xml and i have no right to run a jms server on the server.
indeed
I should write an application which should handle 20-30 Tra / second .
as i fear that my database (embeded derby) or the Host server can not handle this rate , i want to embed
a jms into my web application , pass some of sql statement as a message to a queu in jms and then fetch and execute them one-by one or in a batch mode.Each trans Action has 2 insert and 2 update statement , total number of database table will not pass 20 .

thank you

[Ulf Dittmer]

OpenJMS is written in Java, so it should be embeddable in a web app, although that's not really a good design.

[raminaa niilian]

Hi
thank you for reply
I found a discussion in OpenJMS mailing list
As i found they need to pass a parmeter to tomcat start-up script.
http://sourceforge.net/mailarchive/forum.php?thread_id=8269406&forum_id=12918


Can you tell me why it is wrong desing , using JMS in embeded mode is wrong or using jms in this case is wrong?




Thanks
[ November 06, 2005: Message edited by: raminaa niilian ]

[Ulf Dittmer]

A messaging server is a server, it should operate on its own, independent from the web app or the DB (I understand the constraints of your case, although I think they're strange).
You don't give enough detail to tell whether or not using a messaging system makes sense, but if all three of web app, messaging server and DB operate inside the same JVM, you could devise a solution without a JMS that would save all its overhead, and probably be a good deal faster. Of course, it may still not be fast enough to handle DB TXs in real-time, so you might have to queue requests yourself.

[Aleksey Barabashov]

Originally posted by Ulf Dittmer:
OpenJMS is written in Java, so it should be embeddable in a web app, although that's not really a good design.

OpenJMS is not production ready Alas...

[Ulf Dittmer]

OpenJMS is not production ready

Do you base that assessment on the sub-1.0 release number alone? Because version 0.761 has been stable for a while (and is much more so than quite a few post-1.0 software packages).