I have been using JBoss v3.2 and JBoss MQ v3.2.0. Iam using "TOPIC" for message transfer. Is there any admin api or some other way to know certain details like - Number of messages in the Topic at any instant. - Can any event be fired, when a message is removed from the topic. - Possible parameters can be set to a message. - To read the details of the messages in the topic.