I have to develop one process that will process fast. Below is my requirement and my thoughts
This process executes 10 different queries. To have the performance better I will create ThreadPool using assign independent queries as task and attach with ExecutorService. Then submit the task. I will do it within a stateless session bean. Please let me know whether this approach is correct or not. The machine I am running is dual processor quad core machine with 2G Ram.
I would also like to do/start the processing immediately after results from query are available (doesn't want to wait till all the results are available). Please let me know how to achieve this.
Your not supposed to create your own threads in J2EE (you can off course) , the idea is you submit tasks to a work manager that is integrated in the container, makes thread management a lot easier going forward.
I guess if you are doing something really complex and need the advantages of say Java 7 fork / join doing the threading yourself may be preferable but your losing some of the advantages of J2EE.
"Eagles may soar but weasels don't get sucked into jet engines" SCJP 1.6, SCWCD 1.4, SCJD 1.5,SCBCD 5