Ways to interact with tasks from the worker

[JCHacking]

Currently I have a polling system for each task I want to execute in the worker, which looks for a new task, if there is one, executes it, and then waits for a while to continue the cycle.

This is not efficient since I cannot execute 20 tasks of the same type for example (I only do 1 polling - execution - wait per task type).

Is there any system for my worker to listen for tasks, take them if it recognizes them, up to a limit of number of tasks?
Something consumer style?
Or the only way to do it is as I am doing, with polling?