# AddViaQMDBean_Dup.ejb Sample

This topic inludes the source code for the AddViaQMDBean_Dup.ejb Sample.

## Sample Location

This sample is located in the following directory in your WebLogic Workshop installation:

BEA_HOME/weblogic81/samples/workshop/SamplesApp/EJBs/messageDriven/

## Sample Source Code

`01 package messageDriven; 02 03 import java.util.Date; 04 import javax.ejb.*; 05 import javax.jms.*; 06 import javax.naming.InitialContext; 07 import javax.naming.NamingException; 08 import weblogic.ejb.*; 09 10 /** 11 * This Message-Driven Bean listens to the queue jms/SamplesAppMDBQ 12 * for messages with the message selector "Command = 'Add'", and creates 13 * a new token, using the entity bean SimpleTokenBean. 14 * 15 * @ejbgen:message-driven default-transaction="NotSupported" 16 * message-selector="Command = 'Add'" 17 * max-beans-in-free-pool="2" 18 * ejb-name = AddViaQMD_Dup 19 * destination-jndi-name = jms/SamplesAppMDBQ 20 * destination-type = "javax.jms.Queue" 21 * 22 * @ejbgen:ejb-local-ref link="SimpleToken_M" 23 */ 24 public class AddViaQMDBean_Dup extends GenericMessageDrivenBean implements MessageDrivenBean, MessageListener 25 { 26 private SimpleTokenHome_M tokenHome; 27 private String MDBname; 28 private int objectHash; 29 30 public void ejbCreate() { 31 MDBname = this.getClass().getName(); 32 objectHash = this.hashCode(); 33 try { 34 javax.naming.Context ic = new InitialContext(); 35 tokenHome = (SimpleTokenHome_M)ic.lookup("java:/comp/env/ejb/SimpleToken_M"); 36 } 37 catch(NamingException ne) { 38 System.out.println("Encountered the following naming exception: " + ne.getMessage()); 39 } 40 } 41 42 public void onMessage(Message msg) { 43 try { 44 MapMessage aMsg = (MapMessage)msg; 45 int tokenName = Integer.parseInt(aMsg.getString("tokenName")); 46 tokenHome.create(tokenName,(new Date(System.currentTimeMillis()).toLocaleString()),MDBname, objectHash); 47 Thread.sleep(1000); 48 } 49 catch(Exception e) { 50 System.out.println("Encountered the following exception: " + e.getMessage()); 51 } 52 } 53 } 54`