Question

My question is very similar to this one : @Async prevent a thread to continue until other thread have finished

Basically i need run ~ hundreds of computations in more threads. I want to run only some amount of parallel threads e.g. 5 threads with 5 computationis in paralell.

I am using spring framework and @Async option is natural choice. I do not need full-featured JMS queue, that`s a bit overhead for me.

Any ideas ?
Thank you

Answer 1

Have you checked out Task Executor? You can define a Thread Pool, with a maximum number of threads to execute your tasks.

If you want to use it with @Async, use this in your spring-config:

<task:annotation-driven executor="myExecutor" scheduler="myScheduler"/>

<task:executor id="myExecutor" pool-size="5"/>

<task:scheduler id="myScheduler" pool-size="10"/>

Full reference here (25.5.3). Hope this helps.