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In my program, I have two modules :- Publisher and Subscriber which communicate via Topic.
I understand that in order to receive messages by subscriber, it should be started before publisher. But there may be a scenario where the subscriber goes down for some reason and needs to be restarted. Is there any way, by which if I start the Subscriber after Publisher, then also it should be able to receive message?
If you are only interested in the disconnect-reconnect scenario, I think a durable subscriber is what you are looking for.
http://activemq.apache.org/how-do-durable-queues-and-topics-work.html