synchronized method or use spring @transactional?

Question

I have a method that will be used to send out email. i want to lock this method so only one thread can accses it per time and the rest pool up concurrently. should i synchro

Answer 1

I'm not sure if it answers your question, but instead of creating a new thread for every mail and calling start on it you could have an Executor or ExecutorService as a member of your class, as an implementation you could use a ThreadPoolExecutor with a pool size of 1. Your sendMail method would then submit Runnables to the executor.