Java/EJB3/Message Bean

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EJB Tutorial from JBoss: Consumer producer

   <source lang="java">

File: ExampleProducer.java /* 

* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/

package org.jboss.tutorial.consumer.bean; import org.jboss.annotation.ejb.MessageProperties; import org.jboss.annotation.ejb.DeliveryMode; import org.jboss.annotation.ejb.DeliveryMode; import org.jboss.annotation.ejb.MessageProperties; import java.util.Map; /** 

* comment
*
* @author


EJB Tutorial from JBoss: demo for message driven bean

   <source lang="java">

File: ExampleMDB.java /* 

* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/

package org.jboss.tutorial.mdb.bean; import javax.ejb.MessageDriven; import javax.ejb.ActivationConfigProperty; import javax.jms.Message; import javax.jms.MessageListener; @MessageDriven(activationConfig = 

       {
       @ActivationConfigProperty(propertyName="destinationType", propertyValue="javax.jms.Queue"),
       @ActivationConfigProperty(propertyName="destination", propertyValue="queue/tutorial/example")
       })

public class ExampleMDB implements MessageListener { 

  public void onMessage(Message recvMsg)
  {
     System.out.println("----------------");
     System.out.println("Received message");
     System.out.println("----------------");
  }

}

File: Client.java /* 

* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/

package org.jboss.tutorial.mdb.client; import javax.jms.Queue; import javax.jms.QueueConnection; import javax.jms.QueueConnectionFactory; import javax.jms.QueueSender; import javax.jms.QueueSession; import javax.jms.TextMessage; import javax.naming.InitialContext; public class Client { 

  public static void main(String[] args) throws Exception
  {
     QueueConnection cnn = null;
     QueueSender sender = null;
     QueueSession session = null;
     InitialContext ctx = new InitialContext();
     Queue queue = (Queue) ctx.lookup("queue/tutorial/example");
     QueueConnectionFactory factory = (QueueConnectionFactory) ctx.lookup("ConnectionFactory");
     cnn = factory.createQueueConnection();
     session = cnn.createQueueSession(false, QueueSession.AUTO_ACKNOWLEDGE);
     TextMessage msg = session.createTextMessage("Hello World");
     sender = session.createSender(queue);
     sender.send(msg);
     System.out.println("Message sent successfully to remote queue.");
  }

} 


      </source>



EJB Tutorial from JBoss: Message driven bean

   <source lang="java">

File: DependedOnMBean.java /* 

* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/

package org.jboss.tutorial.dependency.bean; import org.jboss.system.ServiceMBean; /** 

* Comment
*
* @author


EJB Tutorial from JBoss: message driven bean deployment descriptor

   <source lang="java">

File: ejb-jar.xml <?xml version="1.0" encoding="UTF-8"?> <ejb-jar 

       xmlns="http://java.sun.ru/xml/ns/javaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://java.sun.ru/xml/ns/javaee
                           http://java.sun.ru/xml/ns/javaee/ejb-jar_3_0.xsd"
       version="3.0">
  <description>JBoss Message Driven Bean Tutorial</description>
  <display-name>JBoss Message Driven Bean Tutorial</display-name>
  <enterprise-beans>
     <message-driven>
    <ejb-name>ExampleMDB</ejb-name>
    <ejb-class>org.jboss.tutorial.mdb_deployment_descriptor.bean.ExampleMDB</ejb-class>
        <transaction-type>Bean</transaction-type>
        <message-destination-type>javax.jms.Queue</message-destination-type>
      <activation-config>   
         <activation-config-property>
           <activation-config-property-name>acknowledgeMode</activation-config-property-name>
           <activation-config-property-value>AUTO_ACKNOWLEDGE</activation-config-property-value>
         </activation-config-property>
       </activation-config>
     </message-driven>
  </enterprise-beans>

</ejb-jar>

File: jboss.xml <?xml version="1.0" encoding="utf-8"?> <jboss 

       xmlns="http://java.sun.ru/xml/ns/javaee"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://java.sun.ru/xml/ns/javaee
                           http://www.jboss.org/j2ee/schema/jboss_5_0.xsd"
       version="3.0">
  <enterprise-beans>
     <message-driven>
        <ejb-name>ExampleMDB</ejb-name>
        <destination-jndi-name>queue/tutorial/example</destination-jndi-name>
     </message-driven>
  </enterprise-beans>

</jboss> 


      </source>
Источник — «http://jexp.ru/index.php?title=Java/EJB3/Message_Bean&oldid=7773»