Compound Producer-Consumer in Java

Question

I have a relationship that must work as follows; thread A publishes some change to thread B, who takes that change and publishes it to thread C.

The problem is producer-consumer, and I have no problem using a BlockingQueue to implement it with only two entities. How can I make thread B a sort of hybrid producer and consumer to make this work? As in, is there some specified model to follow for problems in this genre?

score 2 · Accepted Answer · answered Feb 24 '13 at 17:12

2

Use two blocking queues: one between A and B; the other between B and C.

answered Feb 24 '13 at 17:12

Ted Hopp

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So, I should pass in two BlockingQueues into the constructor of B? – aquemini Feb 24 '13 at 17:26
@CoconutJones - How you set it up depends on how your surrounding code is structured. It might set up by an external code and passed to the constructors for B (and C), or set up by B in its constructor, or by C. The only requirement is that the second queue is set up in such a way that B and C can both access it. Without seeing your code, it's hard to make any recommendation. – Ted Hopp Feb 24 '13 at 18:15

Compound Producer-Consumer in Java

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