Java BlockingQueue with batching?

Question

I am interested in a data structure identical to the Java BlockingQueue, with the exception that it must be able to batch objects in the queue. In other words, I would like

Answer 1

Not that I am aware of. If I understand correctly you want either the producer to work (while the consumer is blocked) until it fills the queue or the consumer to work (while the producer blocks) until it clears up the queue. If that's the case may I suggest that you don't need a data structure but a mechanism to block the one party while the other one is working in a mutex fasion. You can lock on an object for that and internally have the logic of whether full or empty to release the lock and pass it to the other party. So in short, you should write it yourself :)