[jboss-user] [EJB 3.0] - Timer with Jboss and MySql

[finalsayan]

Hi,
i am new to EJB 3.0 and jboss
i am trying to create a timer with this code taken from the j2ee documentation


  | /**
  |  * TimerBean is a stateless session bean that creates a timer and prints out a
  |  * message when a timeout occurs.
  |  * Created Jan 9, 2006 3:44:08 PM
  |  * @author ian
  |  */
  | @Stateless
  | public class TimerSessionBean implements TimerSession {
  |     private static final Logger logger = Logger.getLogger(
  |                 "com.sun.tutorial.javaee.ejb.timersession.TimerSessionBean");
  |     @Resource
  |     TimerService timerService;
  | 
  |     public void setTimer(long intervalDuration) {
  |         Timer timer = timerService.createTimer(
  |                     intervalDuration,
  |                     "Created new timer");
  |     }
  | 
  |     @Timeout
  |     public void timeout(Timer timer) {
  |         System.out.println("Timeout occurred");
  |     }
  | }
  | 

I get these errors...can someone help me?

I use the "4.5. EJB Timer Configuration" of the jboss configuraton guide


  | <!-- ==================================================================== -->
  |   <!-- J2EE Timer Service                                                   -->
  |   <!-- ==================================================================== -->
  | 
  |   <!-- An EJB Timer Service that is Tx aware -->
  |   <mbean code="org.jboss.ejb.txtimer.EJBTimerServiceImpl"
  |     name="jboss.ejb:service=EJBTimerService">
  |     <attribute name="RetryPolicy">jboss.ejb:service=EJBTimerService,retryPolicy=fixedDelay</attribute>
  |     <attribute name="PersistencePolicy">jboss.ejb:service=EJBTimerService,persistencePolicy=database</attribute>
  |     <attribute name="TimerIdGeneratorClassName">org.jboss.ejb.txtimer.BigIntegerTimerIdGenerator</attribute>
  |     <attribute name="TimedObjectInvokerClassName">org.jboss.ejb.txtimer.TimedObjectInvokerImpl</attribute>
  |     <depends optional-attribute-name="TransactionManagerFactory" proxy-type="org.jboss.tm.TransactionManagerFactory">
  |       jboss:service=TransactionManager
  |     </depends>
  |   </mbean>
  | 
  |   <!-- A retry policy that uses a fixed interval in milli seconds -->
  |   <mbean code="org.jboss.ejb.txtimer.FixedDelayRetryPolicy" name="jboss.ejb:service=EJBTimerService,retryPolicy=fixedDelay">
  |     <attribute name="Delay">100</attribute>
  |   </mbean>
  | 
  |   <!-- A persistence policy that does not persist the timers
  |   <mbean code="org.jboss.ejb.txtimer.NoopPersistencePolicy" name="jboss.ejb:service=EJBTimerService,persistencePolicy=noop"/>
  |   -->
  | 
  |   <!--
  |     A persistence policy that persists timers to a database.
  |     
  |     The 2 supported db persistence plugins are:
  |       org.jboss.ejb.txtimer.GeneralPurposeDatabasePersistencePlugin
  |       org.jboss.ejb.txtimer.OracleDatabasePersistencePlugin
  |       
  |     The table name defaults to "TIMERS". It can be overriden using the
  |     'TimersTable' attribute if the persistence plugin supports it.
  |     When overriding the timers table, an optional schema can be specified
  |     using the syntax [schema.]table
  |   -->
  |   <mbean code="org.jboss.ejb.txtimer.DatabasePersistencePolicy" name="jboss.ejb:service=EJBTimerService,persistencePolicy=database">
  |     <!-- DataSourceBinding ObjectName -->
  |     <depends optional-attribute-name="DataSource">jboss.jca:service=DataSourceBinding,name=MySqlDS</depends>
  |     <!-- The plugin that handles database persistence -->
  |     <attribute name="DatabasePersistencePlugin">org.jboss.ejb.txtimer.GeneralPurposeDatabasePersistencePlugin</attribute>
  |     <!-- The timers table name -->
  |     <attribute name="TimersTable">TIMERS</attribute>
  |   </mbean>
  | 



  | <datasources> 
  |     <local-tx-datasource> 
  |         <jndi-name>MySqlDS</jndi-name> 
  |         <connection-url>jdbc:mysql://localhost:3306/bidone</connection-url> 
  |         <driver-class>com.mysql.jdbc.Driver</driver-class> 
  |         <user-name>root</user-name> 
  |         <password>*******</password> 
  |     </local-tx-datasource> 
  | </datasources> 
  | 


  | 19:29:27,693 INFO  [EJB3Deployer] Deployed: file:/home/finalsayan/Desktop/SE2/3-IMPLEMENTATION/jboss-4.2.2.GA/server/default/tmp/deploy/tmp46825BIDONE.ear-contents/BIDONEEJB.jar
  | 19:29:27,700 INFO  [TomcatDeployer] deploy, ctxPath=/BIDONEWeb, warUrl=.../tmp/deploy/tmp46825BIDONE.ear-contents/BIDONEWeb-exp.war/
  | 19:29:27,824 INFO  [EARDeployer] Started J2EE application: file:/home/finalsayan/Desktop/SE2/3-IMPLEMENTATION/jboss-4.2.2.GA/server/default/deploy/BIDONE.ear
  | 19:29:27,845 ERROR [URLDeploymentScanner] Incomplete Deployment listing:
  | 
  | --- MBeans waiting for other MBeans ---
  | ObjectName: jboss.ejb:service=EJBTimerService,persistencePolicy=database
  |   State: FAILED
  |   Reason: java.lang.IllegalStateException: Cannot find datasource meta data: jboss.jdbc:datasource=MySqlDS,service=metadata
  |   I Depend On:
  |     jboss.jca:service=DataSourceBinding,name=MySqlDS
  | 
  | --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
  | ObjectName: jboss.ejb:service=EJBTimerService,persistencePolicy=database
  |   State: FAILED
  |   Reason: java.lang.IllegalStateException: Cannot find datasource meta data: jboss.jdbc:datasource=MySqlDS,service=metadata
  |   I Depend On:
  |     jboss.jca:service=DataSourceBinding,name=MySqlDS
  | 
  | 
  | 19:29:27,976 INFO  [Http11Protocol] Starting Coyote HTTP/1.1 on http-127.0.0.1-8080
  | 19:29:28,105 INFO  [AjpProtocol] Starting Coyote AJP/1.3 on ajp-127.0.0.1-8009
  | 19:29:28,128 INFO  [Server] JBoss (MX MicroKernel) [4.2.2.GA (build: SVNTag=JBoss_4_2_2_GA date=200710221139)] Started in 15s:276ms
  | 


thank you 

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