Mailing-List: contact activemq-dev-help@geronimo.apache.org; run by ezmlm
Precedence: bulk
Reply-To: activemq-dev@geronimo.apache.org
Received-SPF: pass (herse.apache.org: local policy)
Message-ID: <006601c706de$49b7ff10$77f1a8c0@vlavilla>
From: "Valerie Lavilla" <Valerie.Lavilla@simulalabs.com>
To: <activemq-dev@geronimo.apache.org>
References: <7310781.post@talk.nabble.com>
Subject: Re: Qustion about "Broker"!
Date: Mon, 13 Nov 2006 12:43:34 +0800
MIME-Version: 1.0
Content-Type: text/plain;
	format=flowed;
	charset="iso-8859-1";
	reply-type=original
Content-Transfer-Encoding: 7bit


----- Original Message ----- 
From: "penny_hu" <penny_hu191@126.com>
To: <activemq-dev@geronimo.apache.org>
Sent: Monday, November 13, 2006 11:04 AM
Subject: Qustion about "Broker"!


>
> who could introduce "Broker" for me please? when should i need it?

JMS broker is basically a JMS server. It's a physical component that handles 
the communication between clients. Instead of communicating with each other, 
clients communicate only with the message broker. A client sends a message 
to the message broker, providing the logical name of the receivers. The 
message broker looks up client registered under the logical name and then 
passes the message to them.

>
> in the "ProducerAndConsumerTool" example, there is no "Broker"! is it 
> means
> that "Broker" is not a requisite for commucation with jms ?

In the producer/consumer example, you must run the broker first (that is by 
running activemq) before  running the producer and consumer.

You can read more about JMS here: http://java.sun.com/products/jms/tutorial/

HTH,
Val

> -- 
> View this message in context: 
> http://www.nabble.com/Qustion-about-%22Broker%22%21-tf2619683.html#a7310781
> Sent from the ActiveMQ - Dev mailing list archive at Nabble.com.
>
>