Java/EJB3/Message Bean

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EJB Tutorial from JBoss: Consumer producer

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 ==






   
  <!-- start source code -->
   
    <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.");
   }
}





EJB Tutorial from JBoss: Message driven bean

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 ==






   
  <!-- start source code -->
   
    <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>


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