How can i use connectionfactory efficiently?

i am wondering about the connection factory Object in jms.it may be used by one or more client.So how can i use it efficiently, each client have a connection factory or all of clients use the only one. pls tell me the truth,and thanks a lot !

Connection Factory is an administered Object and ideally should be shared between n number of users. (1<=n<=Total Number of users).
There are some connection factory which are used for administrative purposes. Only the administrators of the JMS server can access them.
JMS server can run on different protocols or more than one transport protocol (HTTP , TCP, HTTPS etc). So client can use the connection factory depending upon the protocol with which it can communicate.
Also the connect URL in the connection factory can be different. So one connection factory may be responsible for connections on JMS server1 and other may be responsible for connections on JMS server2.
Also check out your vendors documentation to know more about the power of Connection factories.

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How can i use connectionfactory efficiently?

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