ScheduledThreadPoolExecutor: How to priorize Tasks?

Question

I need an ScheduledThreadPoolExecutor that runs Task according there priority. If 2 or more Task a pending for immediate execution the one with the highest priority must be called first.

Actually there is a solution for ThreadPoolExecutor, but not for ScheduledThreadPoolExecutor, cause it provides no constructor with a BlockingQueue argument.

See: Java Executors: how can I set task priority?

Answer 1

If I were you I'll have a single threaded ScheduledThreadPoolExecutor which posts to a ThreadPoolExecutor with a PriorityBlockingQueue. Not the most elegant, but it'll get the job done.