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JMS

JMS. Aino Andriessen. Messaging. a-synchrone communicatie Publish-Subscribe Messaging Point-To-Point Messaging. Point to Point. Queue. Publish - Subscribe. Topic (non) durable. JMS. javax.jms verzameling interfaces Connection Session MessageListener MessageConsumer en Producer

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JMS

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  1. JMS Aino Andriessen

  2. Messaging • a-synchrone communicatie • Publish-Subscribe Messaging • Point-To-Point Messaging

  3. Point to Point • Queue

  4. Publish - Subscribe • Topic • (non) durable

  5. JMS • javax.jms • verzameling interfaces • Connection • Session • MessageListener • MessageConsumer en Producer • Queue • Topic • Implementatie is dus nodig • IBM MQ,Tibco,Sonic, ActiveMQ, Oracle AQ, ... • Vaak als EJB • Message Driven Bean (MDB)

  6. Architectuur

  7. JMS - Primary features The primary features of JMS are as follows: • Connection Factories are used in JMS to create connections to a specific JMS provider. • In JMS, both Publish-Subscribe Messaging and Point-To-Point are implemented and defined by separate interfaces so that a Provider does not have to support both. • JMS defines the concept of a Topic or a Queue as the target for a Message. Topics are used for Publish-Subscribe Messaging. Queues are used for Point-to-Point Messaging. • The Providers’ code is defined by interfaces in JMS, freeing the implementation from the limitations of subclassing. • JMS provides support for distributed transactions.

  8. Demo Laptop consumer Suse VM Message Listener ActiveMQ (14-318-962:61616) producer jms api TEST.FOO jms api

  9. 'poor man messaging' • java.util.Queue

  10. More info • http://java.sun.com/products/jms/tutorial/ • http://my.execpc.com/~gopalan/jms/jms.html • http://www.javaskyline.com/learnjms.html

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