EJB2.0 stateless session BMT beans & open transactions
It is clearly stated in the EJB2.0 spec that stateless session BMT beans are not allowed to complete a method without closing the transaction... but if that happens, what exactly is the container's action? Is there an exception thrown back to the client or is the bean discarded? (or both?)
Thanks in advance for any clarification!
Is there an exception thrown back to the
client or is the bean discarded? (or both?)Both. This would be considered a programming error and treated as a system exception.
The bean instance from the faulty invocation would be removed, but the stateless session
bean itself would be available for subsequent invocations.
Similar Messages
-
Java Heap Error when using Stateless Session Timer Bean deployed in Oracle
Hi,
Am getting following Java Heap Error when using Stateless Session Timer Bean deployed in Oracle 10g AS R3 (Oracle Containers for J2EE 10g (10.1.3.0.0) (build 060119.1546.05277) ):
06/08/02 14:58:43 javax.ejb.EJBException: java.lang.OutOfMemoryError: Java heap space
06/08/02 14:58:43 at com.evermind.server.ejb.EJBUtils.getLocalUserException(EJBUtils.java:304)
06/08/02 14:58:43 at com.evermind.server.ejb.interceptor.system.AbstractTxInterceptor.convertAndHandleMethodException(AbstractTxInterceptor.java:67)
06/08/02 14:58:43 at com.evermind.server.ejb.interceptor.system.TxNotSupportedInterceptor.invoke(TxNotSupportedInterceptor.java:45)
06/08/02 14:58:43 at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:69)
06/08/02 14:58:43 at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:86)
06/08/02 14:58:43 at com.evermind.server.ejb.StatelessSessionEJBHome.invokeTimer(StatelessSessionEJBHome.java:71)
06/08/02 14:58:43 at com.evermind.server.ejb.EJBContainer.invokeTimer(EJBContainer.java:1624)
06/08/02 14:58:43 at oracle.ias.container.scheduler.TimerTask.runBeanTimer(TimerTask.java:92)
06/08/02 14:58:43 at oracle.ias.container.scheduler.TimerTask.run(TimerTask.java:184)
06/08/02 14:58:43 at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:819)
06/08/02 14:58:43 at java.lang.Thread.run(Thread.java:595)
06/08/02 14:58:43 Caused by: java.lang.OutOfMemoryError: Java heap space
I had tried using -Xms / -Xmx options (upto 1 GB).
The trace of exception gets delayed (from being displayed on the console) as the memory size is increased; but after sometime it starts getting displayed on the console.
Even though this exception is displayed on the console, the Timer Bean continues to execute upto sometime before it finally crashes!
If anyone has encountered such problem; would appreciate if you could share the solution.
Regards, VidyadharHi guys, I have the same problem. I have an application EAR file with two modules (EJB and WAR starting in this order). The application can schedule a process via EJB timer. In this case restarting the server I receive the error above. If I change the modules start order --> WAR - EJB the server start correctly, but the application scheduler fails (the persistency is not working) with this error:
07/10/09 10:30:54 FINISSIMO: TimerTask.runBeanTimer java.lang.NullPointerException; nested exception is: java.lang.NullPointerExceptionjavax.ejb.TransactionRolledbackLocalException: java.lang.NullPointerException; nested exception is: java.lang.NullPointerException
java.lang.NullPointerException
at java.util.ListResourceBundle.handleGetObject(ListResourceBundle.java:107)
at java.util.ResourceBundle.getObject(ResourceBundle.java:319)
at java.util.ResourceBundle.getString(ResourceBundle.java:285)
at java.util.logging.Formatter.formatMessage(Formatter.java:108)
at oracle.j2ee.util.TraceLogFormatter.format(TraceLogger.java:124)
at oracle.j2ee.util.TraceLogger$TraceLoggerHandler.publish(TraceLogger.java:105)
at java.util.logging.Logger.log(Logger.java:428)
at java.util.logging.Logger.doLog(Logger.java:450)
at java.util.logging.Logger.log(Logger.java:539)
at oracle.ias.container.timer.TimerEntry.readObjFromBytes(TimerEntry.java:308)
at oracle.ias.container.timer.TimerEntry.getInfo(TimerEntry.java:107)
at oracle.ias.container.timer.Timer.getInfo(Timer.java:367)
at oracle.ias.container.timer.EJBTimerImpl.getInfo(EJBTimerImpl.java:89)
at com.finantix.foundation.integration.ejbtimer.EJBTimerServiceExecutorBean.ejbTimeout(EJBTimerServiceExecutorBean.java:42)
at com.evermind.server.ejb.interceptor.joinpoint.EJBTimeoutJoinPoint.invoke(EJBTimeoutJoinPoint.java:20)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.SetContextActionInterceptor.invoke(SetContextActionInterceptor.java:44)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.TxBeanManagedInterceptor.invoke(TxBeanManagedInterceptor.java:53)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)
at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)
at com.evermind.server.ejb.StatelessSessionEJBHome.invokeTimer(StatelessSessionEJBHome.java:38)
at com.evermind.server.ejb.EJBContainer.invokeTimer(EJBContainer.java:1714)
at oracle.ias.container.scheduler.TimerTask.runBeanTimer(TimerTask.java:106)
at oracle.ias.container.scheduler.TimerTask.run(TimerTask.java:220)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
at java.lang.Thread.run(Thread.java:595)
javax.ejb.TransactionRolledbackLocalException: java.lang.NullPointerException; nested exception is: java.lang.NullPointerException
at com.evermind.server.ejb.EJBUtils.getLocalUserException(EJBUtils.java:309)
at com.evermind.server.ejb.interceptor.system.AbstractTxInterceptor.convertAndHandleMethodException(AbstractTxInterceptor.java:73)
at com.evermind.server.ejb.interceptor.system.TxBeanManagedInterceptor.invoke(TxBeanManagedInterceptor.java:55)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)
at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)
at com.evermind.server.ejb.StatelessSessionEJBHome.invokeTimer(StatelessSessionEJBHome.java:38)
at com.evermind.server.ejb.EJBContainer.invokeTimer(EJBContainer.java:1714)
at oracle.ias.container.scheduler.TimerTask.runBeanTimer(TimerTask.java:106)
at oracle.ias.container.scheduler.TimerTask.run(TimerTask.java:220)
at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.NullPointerException
at java.util.ListResourceBundle.handleGetObject(ListResourceBundle.java:107)
at java.util.ResourceBundle.getObject(ResourceBundle.java:319)
at java.util.ResourceBundle.getString(ResourceBundle.java:285)
at java.util.logging.Formatter.formatMessage(Formatter.java:108)
at oracle.j2ee.util.TraceLogFormatter.format(TraceLogger.java:124)
at oracle.j2ee.util.TraceLogger$TraceLoggerHandler.publish(TraceLogger.java:105)
at java.util.logging.Logger.log(Logger.java:428)
at java.util.logging.Logger.doLog(Logger.java:450)
at java.util.logging.Logger.log(Logger.java:539)
at oracle.ias.container.timer.TimerEntry.readObjFromBytes(TimerEntry.java:308)
at oracle.ias.container.timer.TimerEntry.getInfo(TimerEntry.java:107)
at oracle.ias.container.timer.Timer.getInfo(Timer.java:367)
at oracle.ias.container.timer.EJBTimerImpl.getInfo(EJBTimerImpl.java:89)
at com.finantix.foundation.integration.ejbtimer.EJBTimerServiceExecutorBean.ejbTimeout(EJBTimerServiceExecutorBean.java:42)
at com.evermind.server.ejb.interceptor.joinpoint.EJBTimeoutJoinPoint.invoke(EJBTimeoutJoinPoint.java:20)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.SetContextActionInterceptor.invoke(SetContextActionInterceptor.java:44)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.TxBeanManagedInterceptor.invoke(TxBeanManagedInterceptor.java:53)
... 9 more
Any idea?
Thx Auro -
Stateless Session EJB Bean Example please
Dear Friends,
Develop a stateless session EJB bean and deploy it in WebLogic 8.1
Please proivde me a weblogic8.1 example along with the deployment steps.
Also mention the supporting softwares needed.
I have weblogic 8.1, JDK 1.5
Advance Thanks.
Rengaraj.RHi Rahul,
Please paste the files here if they are small in size.
IDfLoginInfo li = new DfLoginInfo(); //this is where the error occurs as when i remove this line. i dont get an error
Have you checked this as I have mentioned something regarding this in my mail?
Regards
Vicky -
How to get the UserTransaction object in stateless session bean
Hi, I am using jboss server and jdk5 version and using EJB.
My Application flow :
JSP à Action(Struts) à Service Locator à Session bean à Entity Bean(cmp) à DB.
I tried to get the UserTransaction object in my Action. Its my code.
InitialContext ctx = new InitialContext();
UserTransaction uTrans = (UserTransaction) ctx.lookup("java:comp/UserTransaction");
After used uTrans.begin(),uTrans.commit() and uTrans. rollback () also.
Its working fine .
But, I used the the same code inside in my session bean its not working.
Stateless Session Manager Bean code :
public class SampleManagerBean implements SessionBean {
public void ejbCreate() throws CreateException { }
public void ejbRemove() { }
public void ejbActivate() { }
public void ejbPassivate() { }
public void setSessionContext(SessionContext sessionContext) {
this.sessionContext = sessionContext;
public void createSample() throws EJBException
try{
InitialContext ctx = new InitialContext();
UserTransaction ut = (UserTransaction) ctx.lookup("java:comp/UserTransaction");
}catch(Exception e) {
System.out.println( Exception === > +e)
Its throws the error ie: javax.naming.NameNotFoundException: UserTransaction not bound
How to get the UserTransaction object in my session bean. Kindly give solution the above errors.
- Thendralfirst of all, you could just use sessionContext.getUserTransaction(). however, that would only work if your bean is using bean-managed transactions. the default is container-managed transaction, in which case you cannot get a UserTransaction object. if you want to manage transactions, you need to add the TransactionManagementType.BEAN annotation to your ejb.
-
Transactional error when using JMS from stateless session bean
I get a transaction exception when committing a bean method responsible for sending to a JMS topic. This happens only occasionally when two separate threads invoke this method "at the same time".
The scenario:
Two separate threads running two different instances of a stateless session bean (slsb A). This ejb (slsb A) has an injected slsb B which is communicating with the the topic.
Both instances of slsb A are utilising the same instance of slsb B.
The CMT transactions for the two threads start in slsb A from methods with transaction attribute "RequiresNew". All nested methods are to other slsbs and have the transaction attribute "Required". The method in slsb B which sends the message is closing both the session and the connection to the topic.
I'm running Glassfish version 9.1_02 (build b04-fcs) and JMS implementation OpenMQ version 4.1.
Stacktrace (glassfish log):
[#|2008-09-09T13:00:40.515+0200|SEVERE|sun-appserver9.1|javax.resourceadapter.mqjmsra.outbound.connection|_ThreadID=18;_ThreadName=httpSSLWorkerThread-8080-1;_RequestID=108e8418-71a6-4d8b-a94d-9e1edc885891;|commitTransaction (XA) on JMSService:jmsdirect failed for connectionId:5754505514139844608 and onePhase:false due to unkown JMSService server error.|#]
[#|2008-09-09T13:00:40.515+0200|SEVERE|sun-appserver9.1|javax.enterprise.system.core.transaction|_ThreadID=18;_ThreadName=httpSSLWorkerThread-8080-1;org.omg.CORBA.INTERNAL: vmcid: 0x0 minor code: 0 completed: Maybe;commit;_RequestID=108e8418-71a6-4d8b-a94d-9e1edc885891;|JTS5031: Exception [org.omg.CORBA.INTERNAL: vmcid: 0x0 minor code: 0 completed: Maybe] on Resource [commit] operation.|#]
[#|2008-09-09T13:00:40.531+0200|INFO|sun-appserver9.1|javax.enterprise.system.container.ejb|_ThreadID=18;_ThreadName=httpSSLWorkerThread-8080-1;SubscriptionBean;|EJB5018: An exception was thrown during an ejb invocation on [SubscriptionBean]|#]
[#|2008-09-09T13:00:40.531+0200|INFO|sun-appserver9.1|javax.enterprise.system.container.ejb|_ThreadID=18;_ThreadName=httpSSLWorkerThread-8080-1;|
javax.ejb.EJBException: Unable to complete container-managed transaction.; nested exception is: javax.transaction.SystemException: org.omg.CORBA.INTERNAL: JTS5031: Exception [org.omg.CORBA.INTERNAL: vmcid: 0x0 minor code: 0 completed: Maybe] on Resource [commit] operation. vmcid: 0x0 minor code: 0 completed: No
javax.transaction.SystemException: org.omg.CORBA.INTERNAL: JTS5031: Exception [org.omg.CORBA.INTERNAL: vmcid: 0x0 minor code: 0 completed: Maybe] on Resource [commit] operation. vmcid: 0x0 minor code: 0 completed: No
at com.sun.jts.jta.TransactionManagerImpl.commit(TransactionManagerImpl.java:321)
at com.sun.enterprise.distributedtx.J2EETransactionManagerImpl.commit(J2EETransactionManagerImpl.java:1030)
at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.commit(J2EETransactionManagerOpt.java:397)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3792)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3585)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1354)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1316)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:205)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:127)
at $Proxy130.requestNewSubscription(Unknown Source)
at com.abeldrm.kms.core.services.subscription.SubscriptionWSBean.requestNewSubscription(SubscriptionWSBean.java:94)
at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1067)
at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:176)
at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:2895)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:3986)
at com.sun.ejb.containers.WebServiceInvocationHandler.invoke(WebServiceInvocationHandler.java:189)
at $Proxy129.requestNewSubscription(Unknown Source)
at sun.reflect.GeneratedMethodAccessor126.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.webservice.InvokerImpl.invoke(InvokerImpl.java:81)
at com.sun.enterprise.webservice.EjbInvokerImpl.invoke(EjbInvokerImpl.java:82)
at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:146)
at com.sun.xml.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:257)
at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:93)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436)
at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:106)
at com.sun.enterprise.webservice.MonitoringPipe.process(MonitoringPipe.java:147)
at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436)
at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:106)
at com.sun.xml.ws.tx.service.TxServerPipe.process(TxServerPipe.java:329)
at com.sun.enterprise.webservice.CommonServerSecurityPipe.processRequest(CommonServerSecurityPipe.java:218)
at com.sun.enterprise.webservice.CommonServerSecurityPipe.process(CommonServerSecurityPipe.java:129)
at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436)
at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:243)
at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:444)
at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244)
at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:135)
at com.sun.enterprise.webservice.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:113)
at com.sun.enterprise.webservice.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:87)
at com.sun.enterprise.webservice.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:226)
at com.sun.enterprise.webservice.EjbWebServiceServlet.service(EjbWebServiceServlet.java:155)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
at com.sun.enterprise.web.AdHocContextValve.invoke(AdHocContextValve.java:114)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:87)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)
at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)
IMQ broker log:
[09/Sep/2008:13:00:40 CEST] ERROR CommitTransaction: commit failed. Connection ID: 5754505514139844608, Transaction ID: 0:
com.sun.messaging.jmq.jmsserver.util.BrokerException: Unknown Transaction 0
at com.sun.messaging.jmq.jmsserver.data.protocol.ProtocolImpl.commitTransaction(ProtocolImpl.java:630)
at com.sun.messaging.jmq.jmsserver.service.imq.IMQDirectService.commitTransaction(IMQDirectService.java:1735)
at com.sun.messaging.jms.ra.DirectXAResource.commit(DirectXAResource.java:201)
at com.sun.jts.jtsxa.OTSResourceImpl.commit(OTSResourceImpl.java:114)
at com.sun.jts.CosTransactions.RegisteredResources.distributeCommit(RegisteredResources.java:795)
at com.sun.jts.CosTransactions.TopCoordinator.commit(TopCoordinator.java:2111)
at com.sun.jts.CosTransactions.CoordinatorTerm.commit(CoordinatorTerm.java:403)
at com.sun.jts.CosTransactions.TerminatorImpl.commit(TerminatorImpl.java:249)
at com.sun.jts.CosTransactions.CurrentImpl.commit(CurrentImpl.java:623)
at com.sun.jts.jta.TransactionManagerImpl.commit(TransactionManagerImpl.java:309)
at com.sun.enterprise.distributedtx.J2EETransactionManagerImpl.commit(J2EETransactionManagerImpl.java:1030)
at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.commit(J2EETransactionManagerOpt.java:397)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3792)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3585)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1354)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1316)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:205)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:127)
at $Proxy130.requestNewSubscription(Unknown Source)
at com.abeldrm.kms.core.services.subscription.SubscriptionWSBean.requestNewSubscription(SubscriptionWSBean.java:94)
at sun.reflect.GeneratedMethodAccessor127.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1067)
at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:176)
at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:2895)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:3986)
at com.sun.ejb.containers.WebServiceInvocationHandler.invoke(WebServiceInvocationHandler.java:189)
at $Proxy129.requestNewSubscription(Unknown Source)
at sun.reflect.GeneratedMethodAccessor126.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.enterprise.webservice.InvokerImpl.invoke(InvokerImpl.java:81)
at com.sun.enterprise.webservice.EjbInvokerImpl.invoke(EjbInvokerImpl.java:82)
at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:146)
at com.sun.xml.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:257)
at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:93)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436)
at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:106)
at com.sun.enterprise.webservice.MonitoringPipe.process(MonitoringPipe.java:147)
at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436)
at com.sun.xml.ws.api.pipe.helper.AbstractTubeImpl.process(AbstractTubeImpl.java:106)
at com.sun.xml.ws.tx.service.TxServerPipe.process(TxServerPipe.java:329)
at com.sun.enterprise.webservice.CommonServerSecurityPipe.processRequest(CommonServerSecurityPipe.java:218)
at com.sun.enterprise.webservice.CommonServerSecurityPipe.process(CommonServerSecurityPipe.java:129)
at com.sun.xml.ws.api.pipe.helper.PipeAdapter.processRequest(PipeAdapter.java:115)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:595)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:554)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:539)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:436)
at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:243)
at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:444)
at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244)
at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:135)
at com.sun.enterprise.webservice.Ejb3MessageDispatcher.handlePost(Ejb3MessageDispatcher.java:113)
at com.sun.enterprise.webservice.Ejb3MessageDispatcher.invoke(Ejb3MessageDispatcher.java:87)
at com.sun.enterprise.webservice.EjbWebServiceServlet.dispatchToEjbEndpoint(EjbWebServiceServlet.java:226)
at com.sun.enterprise.webservice.EjbWebServiceServlet.service(EjbWebServiceServlet.java:155)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:831)
at com.sun.enterprise.web.AdHocContextValve.invoke(AdHocContextValve.java:114)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:87)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:206)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:150)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:632)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:577)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:571)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1080)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:272)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:637)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:568)
at com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask.process(DefaultProcessorTask.java:813)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.executeProcessorTask(DefaultReadTask.java:341)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:263)
at com.sun.enterprise.web.connector.grizzly.DefaultReadTask.doTask(DefaultReadTask.java:214)
at com.sun.enterprise.web.connector.grizzly.TaskBase.run(TaskBase.java:265)
at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:106)
Have anyone any idea why this should fail?
Regards,
JonI would suggest opening a case with [email protected] FWIW, I recall seeing
something like this in WLS 6.0. I believe it is fixed in WLS 6.1
-- Rob
Chris Dupuy wrote:
> Btw, this occurs when I create an stateful session bean that ends up
> throwing an exception and setRollbackOnly() is called. From that point
> forward, my logs fill with this message.
>
> Chris
>
> "Chris Dupuy" <[email protected]> wrote in message
> news:[email protected]..
> > anyone know what this means, and what you can do about it?
> >
> >
> > <Error> <ConnectionManager> <atossd03> <cbeyondServer> <ExecuteThread:
> '14'
> > for queue: 'd
> > efault'> <> <> <000000> <Closing:
> 'weblogic.rjvm.t3.T3JVMConnection@488831'
> > because of: 'Server received a message over an uniniti
> > alized connection: 'JVMMessage from: 'null' to:
> >
> '5825313123619479267S:10.6.6.40:[8000,8000,8001,8001,8000,8001,-1]:cbeyond:c
> > beyond
> > Server' cmd: 'CMD_REQUEST', QOS: '101', responseId: '2', invokableId: '1',
> > flags: 'JVMIDs Not Sent, TX Context Not Sent', abbrev o
> > ffset: '204'''>
> >
> >
> >
-
EJB Stateless Session Bean Transactions
I have a stateless session bean.
Its deployment descripter references a JDBC DataSource.
It uses container managed transactions.
If I make JDBC calls, within a business method
of this stateless session bean, with the referred datasource, is it attached
to a container managed transaction?If I make JDBC calls, within a business method
of this stateless session bean, with the referred
datasource, is it attached
to a container managed transaction?IIRC, yes. For CMT, the container will roll back any JDBC actions carried out by a method if it fails. -
Transaction can be applied to stateless session bean
is transaction can be applied to stateless session beanif yes/no why?
Just because a stateless session bean is stateless doesn't mean it doens't hold state. The stateless means it shouldn't hold any client state.
It can hold onto for example the dao objects.
The idea is that you pass all the client state to the sessionbean when calling it.
Eg.
public void doBulkOperation( User user ,string param1, String param2){
operation1( user, param1 );
operation2( user, param2 );
public void operation1( User user ,String param1){
//do some work involving user
public void operation2( User user ,String param2){
//do some work involving user
now suppose that doBulkOperation, operation1, operation2 are declared as transaction required. doBulkOperation starts the transaction if there isn't one running and joins the transaction. Then operation1 and operation2 join in the transaction.
Perfectly safe!
What you're not allowed to do is the following:
privata User user
public void doBulkOperation( User user ,string param1, String param2){
this.user = user;
operation1( param1 );
operation2( param2 );
public void operation1( String param1){
//do some work involving user
public void operation2( String param2){
//do some work involving user
This would be unsafe because concurrent calls will change the user and produce unpredictable results and possibly corrupting data.
It will work perfectly thougn if there is only one user or you're using a statefull session bean providing you don't share that bean with several clients. -
Not be able to obtain a transacted session within stateless session bean
I need some assistance on creating a transacted session. For some reason while within a stateless session bean, I am unable to create a transacted session even though I'm specifying to create the transacted queue session. Can anyone provide any assistance to me on this? It would be much appreciated.
Here is the code snippets involved with the problem:
Code snipet from ejb-jar.xml:
<session>
<display-name>Initial Request</display-name>
<ejb-name>InitialRequestBean</ejb-name>
<ejb-class>com.raytheon.rds.jms.InitialRequestBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
</session>
Code from stateless session bean:
static Logger logger;
private QueueConnectionFactory connectionFactory;
private SessionContext sc;
private Queue requestQueue;
public String processRequest(String msgBody)
logger.log(Level.INFO, "In processRequest(String).", msgBody);
QueueConnection con = null;
QueueSession session = null;
QueueSender sender = null;
TextMessage message = null;
String messageID = null;
QueueReceiver receiver = null;
TemporaryQueue replyQueue = null;
boolean transacted = false;
try
//Create the infrastructure (ie. The connection & the session)
logger.log(Level.FINE, "Creating connection");
con = connectionFactory.createQueueConnection();
logger.log(Level.FINE, "Creating session");
session = con.createQueueSession(true, Session.AUTO_ACKNOWLEDGE);
//Note: This line above was changed in all possible permutation and still didn't work such as using Session.SESSION_TRANSACTED
transacted = session.getTransacted();
logger.log(Level.FINE, "Is session transacted? : " + transacted);
//Note: This line above is constantly saying false
//Now first, setup the temporary reply queue and its listener
replyQueue = session.createTemporaryQueue();
logger.log(Level.FINE, "Creating receiver/consumer");
receiver = session.createReceiver(replyQueue);
con.start();
//Now create the requestor that will make the request message and put it on the request queue
logger.log(Level.FINE, "Creating Requestor/Producer");
sender = session.createSender(requestQueue);
//Now create the message and make sure that you put the "JMSReplyTo" property to the temporary response queue we just created
message = session.createTextMessage();
message.setJMSReplyTo(replyQueue);
logger.log(Level.FINE, "Created message: " + message.getJMSMessageID());
//Now add the actual info you want to send
message.setText(msgBody);
//Now send the message
logger.log(Level.INFO, "Sending message: " + message.getText());
sender.send(message);
//Now wait until we get a response
logger.log(Level.FINE, "Waiting for the response message");
Message responseMsg = receiver.receive(20000); //Toggle the "0" to specify timeout in millisectionds
//Process the message
logger.log(Level.FINE, "Processing the response message");
if(null != responseMsg)
logger.log(Level.FINE, "responseMsg is : " + responseMsg.toString());
messageID = processMessage(responseMsg);
logger.log(Level.FINE, "Response is : " + messageID);
//close the connection
logger.log(Level.FINE, "Stopping the connection");
con.stop();
catch (Throwable t)
// JMSException could be thrown
logger.log(Level.SEVERE, "Exception Thrown in sendRequest: ", t);
sc.setRollbackOnly();
finally
//Close the sender
if (sender != null)
try
logger.log(Level.FINE, "Closing the sender");
sender.close();
catch (JMSException e)
logger.log(Level.WARNING, "JMSException Thrown when trying to close the sender to the request queue: ", e);
else
logger.log(Level.FINE, "Sender is already closed.");
//Close the receiver
if (receiver != null)
try
logger.log(Level.FINE, "Closing the receiver");
receiver.close();
catch (JMSException e)
logger.log(Level.WARNING, "JMSException Thrown when trying to close the receiver to the request queue: ", e);
else
logger.log(Level.FINE, "Receiver is already closed.");
//Close the session
if (session != null)
try
logger.log(Level.FINE, "Closing the session");
session.close();
catch (JMSException e)
logger.log(Level.WARNING, "JMSException Thrown when trying to close the session to the request queue: ", e);
else
logger.log(Level.FINE, "Session is already closed.");
//Close the connection
if (con != null)
try
logger.log(Level.FINE, "Closing the connection");
con.close();
catch (JMSException e)
logger.log(Level.WARNING, "JMSException Thrown when trying to close the connection to the reply queue: ", e);
else
logger.log(Level.FINE, "Connection is already closed.");
return messageID;
}I found the answer through lots of painful searching.
http://blogs.sun.com/fkieviet/entry/request_reply_from_an_ejb
This weblog from Frank Kieviet from a sun blog explains what's happening behind the scenes.
Then I proceeded to create a Bean-Managed Transaction out of my EJB, which is using EJB 3.0. This requires the tag:
@TransactionManagement(value= TransactionManagementType.BEAN)
Note: I got this information from http://download.oracle.com/docs/cd/B31017_01/web.1013/b28221/servtran001.htm#BAJIBAFF
Then I just added the code specified in Frank's blog and everything is working now. The main portion of the code looks like this now:
//begin the user transaction
ctx.getUserTransaction().begin();
//Create the infrastructure (ie. The connection & the session)
logger.log(Level.FINE, "Creating connection");
con = connectionFactory.createQueueConnection();
//Create the session
logger.log(Level.FINE, "Creating session");
session = con.createQueueSession(false, Session.SESSION_TRANSACTED);
transacted = session.getTransacted();
logger.log(Level.FINE, "Is session transacted? : " + transacted);
//Now create the sender that will make the request message and put it on the request queue
logger.log(Level.FINE, "Creating Sender");
sender = session.createSender(requestQueue);
//Now create the message
message = session.createTextMessage();
//Now add the actual info you want to send
message.setText(msgBody);
logger.log(Level.FINE, "Created message: " + message.getJMSMessageID());
//Now first, setup the temporary reply queue and its listener
replyQueue = session.createTemporaryQueue();
if(null != replyQueue)
logger.log(Level.FINE, "Created temporary queue: " + replyQueue.getQueueName());
else
logger.log(Level.FINE, "Temporary Queue could not be created.");
//make sure that you put the "JMSReplyTo" property to the temporary response queue we just created
message.setJMSReplyTo(replyQueue);
//Now send the message
logger.log(Level.INFO, "Sending message: " + message.getText());
sender.send(message);
//Now start the connection
logger.log(Level.FINE, "Starting the connection");
con.start();
//commit the changes
ctx.getUserTransaction().commit();
ctx.getUserTransaction().begin();
//Create the receiver
logger.log(Level.FINE, "Creating Receiver");
receiver = session.createReceiver(replyQueue);
//Now wait until we get a response
logger.log(Level.FINE, "Waiting for the response message");
Message responseMsg = receiver.receive(20000); //Toggle the "0" to specify timeout in millisectionds
//Process the message
logger.log(Level.FINE, "Processing the response message");
if(null != responseMsg)
logger.log(Level.FINE, "responseMsg is : " + responseMsg.toString());
else
logger.log(Level.FINE, "No response came back.");
messageID = processMessage(responseMsg);
logger.log(Level.FINE, "Response is : " + messageID);
logger.log(Level.FINE, "Transaction is complete");
//commit the changes
ctx.getUserTransaction().commit(); -
Transaction management in stateless session beans.
Hi all,
I am using EJB 1.1.
I have a statless session bean that has two methods- A and B.
which does not involve any database interaction
like inserting/updating/deleting the data in the database.
The process flow is such the client always calls A first followed by the call to B.
I have the Transaction attribute set as TX_REQUIRED at the whole bean level.
Now my question is as follows:
Since it is a stateless bean, ejbCreate() is called for every method's invocation.
So does it mean that a new transaction is started for every method invocation?
Also since a transaction ends by commit/rollback.
The transation associated with the method A/B will never get completed as there is no commit/rollback involved in method implementation.
So how is this transaction ended?
Any more details about the transaction management in stateless session beans is highly appreciated.
Any input at the earliest is highly appreciated.
Thanks in advance.Since it is a stateless bean, ejbCreate() is called for every method's invocation.For stateless session bean , Create() is not delegated to the instance.
So does it mean that a new transaction is started for every method invocation?This depends opon the Tx attribute and sequence of calls. Since you have given Tx_required then if you call any method and there is no Tx context associated with client,then a new TX will be started by container othere wise it will execute in the same TX context as the calling client. Note that client can be jsp or other ejb method.
Also since a transaction ends by commit/rollback.
The transation associated with the method A/B will never get completed >as there is no commit/rollback involved in method implementation.
So how is this transaction ended?If you are using COntainer managed TX then Transaction handling like starting , ending etc is handled by the container. You need not worry about that.
Any more details about the transaction management in stateless session >beans is highly appreciated.
Any input at the earliest is highly appreciated.Some time back I had read the article on how the Transaction management done by container on IBM Site. I dont have URL , but you can search the site.
HTH
-Ashwani -
Transaction is not Rolling Back in Stateless Session Bean
Hi,
I am using UserTransaction in Stateless Session bean .
Transaction is not rolling back.
The following code is writen in stateless session bean. In UserTransaction i am
calling Two methods of another stateless session bean.
The problem is if doJob2() method fails, doJob1() method is rolling back. These
two methods consist of SQL statement with different Connection Object from TXDataSource.And
session bean(TestSession) is set to CMT, attribute as "Required".
try{
Context ictx=new InitialContext();
TestHome home=(TestHome)ictx.lookup("TestSession");
utx = sessionCtx.getUserTransaction();
utx.begin();
TestRemote remote=home.create();
remote.doJob1();
remote.doJob2();
utx.commit();
}catch(Exception e)
try{
utx.rollback();
}catch(Exception ex)
System.out.println("unable to rollback"+ex);
if any SQL Exception as occured in doJob2(), its calling method utx.rollback()
in catch block. but SQL statements executed thru. doJob1() are not rolling back.
what might be the reason?
thanks
Ranganath
Thanx Priscilla ,
Transaction is working.
ranganath
"Priscilla Fung" <[email protected]> wrote:
>
>In your ejb-jar.xml, you should specify <transaction-type> element to
>be "Container"
>for container-managed transaction. If you specified it to be "Bean" for
>bean-managed
>transaction, EJB ontainer will suspend the caller's transaction before
>starting
>a new transaction for your doJobX() methods. Thus, doJob1()nd doJob2()
>will be
>executing in different transactions, and thus rolling back doJob2()'s
>transaction
>will have no effect on work done and committed in doJob1()'s transaction.
>
>Regards,
>
>Priscilla
>
>
>"Ranganath" <[email protected]> wrote:
>>
>>
>>
>>I am sending config.xml,deployment descriptors, code snippet for TestSession.
>>i
>>am using weblogic6.0sp2.
>>if you need any aditional info. please let me know.
>>
>>thanks
>>ranganath
>>
>>EJB-JAR.xml
>>
>><?xml version="1.0"?>
>>
>><!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise
>JavaBeans
>>1.1//EN' 'http://java.sun.com/j2ee/dtds/ejb-jar_1_1.dtd'>
>>
>><ejb-jar>
>> <enterprise-beans>
>> <session>
>> <ejb-name>TestSession</ejb-name>
>> <home>com.apar.sslbridge.test.TestHome</home>
>> <remote>com.apar.sslbridge.test.TestRemote</remote>
>> <ejb-class>com.apar.sslbridge.test.TestBean</ejb-class>
>> <session-type>Stateless</session-type>
>> <transaction-type>Bean</transaction-type>
>> <resource-ref>
>> <res-ref-name>jdbc/oraclePool</res-ref-name>
>> <res-type>javax.sql.DataSource</res-type>
>> <res-auth>Container</res-auth>
>> </resource-ref>
>> </session>
>> </enterprise-beans>
>> <assembly-descriptor>
>> <container-transaction>
>> <method>
>> <ejb-name>TestSession</ejb-name>
>> <method-intf>Remote</method-intf>
>> <method-name>*</method-name>
>> </method>
>> <trans-attribute>Required</trans-attribute>
>> </container-transaction>
>> </assembly-descriptor>
>></ejb-jar>
>>
>>
>>TestSession CODE:
>>
>>
>> public void doJob1() throws RemoteException
>> {
>> Statement st = null;
>> String query=null;
>> try{
>> con=getConnection();
>> st=con.createStatement();
>> query="insert into x values("+x+++")";
>> System.out.println(query);
>> int rec=st.executeUpdate(query);
>> }catch(SQLException sqle)
>> {
>> System.out.println("SQL Exception "+sqle);
>> throw new RemoteException("RemoteException*****SQLError");
>> } catch (Exception e) {
>> System.out.println("Exception "+e);
>> throw new RemoteException("RemoteException*****GenralError");
>> }
>>}
>>
>>
>> public void doJob2()throws RemoteException
>> {
>> Connection con=null;
>> Statement st = null;
>> String query=null;
>> try{
>> con=getConnection();
>> st=con.createStatement();
>> query="insert into y values("+x+++")";
>> System.out.println(query);
>> int rec=st.executeUpdate(query);
>> }catch(SQLException sqle)
>> {
>> System.out.println("SQL Exception "+sqle);
>> throw new RemoteException("RemoteException*****SQLError");
>> } catch (Exception e) {
>> System.out.println("Exception "+e);
>> throw new RemoteException("RemoteException*****GenralError");
>>}
>>}
>>private Connection getConnection(){
>>try {
>>Connection con = StaticParams.POOL_DATASOURCE.getConnection();
>>return con;
>> } catch(Exception e) {
>> System.out.println("TestBean.getConnection() Unable to get get pool
>>connection
>>" + e);
>> }
>>}
>>
>>
>>
>>
>>"Priscilla Fung" <[email protected]> wrote:
>>>
>>>It should work if you are using TxDataSource. Could you post your
>config.xml,
>>>deployment descriptors, code snippet for TestSession?
>>>
>>>Regards,
>>>
>>>Priscilla
>>>
>>>"Ranganath" <[email protected]> wrote:
>>>>
>>>>Hi,
>>>>
>>>> I am using UserTransaction in Stateless Session bean .
>>>> Transaction is not rolling back.
>>>>
>>>>The following code is writen in stateless session bean. In UserTransaction
>>>>i am
>>>>calling Two methods of another stateless session bean.
>>>> The problem is if doJob2() method fails, doJob1() method is rolling
>>>> back. These
>>>>two methods consist of SQL statement with different Connection Object
>>>>from TXDataSource.And
>>>>session bean(TestSession) is set to CMT, attribute as "Required".
>>>>
>>>> try{
>>>> Context ictx=new InitialContext();
>>>> TestHome home=(TestHome)ictx.lookup("TestSession");
>>>> utx = sessionCtx.getUserTransaction();
>>>> utx.begin();
>>>> TestRemote remote=home.create();
>>>> remote.doJob1();
>>>> remote.doJob2();
>>>> utx.commit();
>>>> }catch(Exception e)
>>>> {
>>>> try{
>>>> utx.rollback();
>>>> }catch(Exception ex)
>>>> {
>>>> System.out.println("unable to rollback"+ex);
>>>> }
>>>> }
>>>>if any SQL Exception as occured in doJob2(), its calling method utx.rollback()
>>>>in catch block. but SQL statements executed thru. doJob1() are not
>>rolling
>>>>back.
>>>>what might be the reason?
>>>>
>>>>thanks
>>>>Ranganath
>>>
>>
>
-
Transaction not rolling back in stateless session bean
Hi,
I am facing a problem...
I have one stateless session bean which does multiple updates in SYBASE database.I
am using non-transactional datasource. Bean calls a method of data access obejct
whcih internally calls more than one one mehtod to update different tables.If
any of update fails then I am explicitly thorwing EJBException. Still it is not
rolling back.
I have one more application where similar situation is there but only difference
is that there we have Entity bean and updates are being done through store method.
In that case with same datasource it is rolling back perfectly.
I have tried with transactional datasource as well but it didn't work.Then I tried
to put setAutoCommit(false) in my connection class which gives me connection.But
then it is not allowing me to enter into my application.
In deployment descriptor for both the beans transaction attribute is required
for all methods.
Regards.
Rahul.
Hi,
I am facing a problem...
I have one stateless session bean which does multiple updates in SYBASE database.I
am using non-transactional datasource. Bean calls a method of data access obejct
whcih internally calls more than one one mehtod to update different tables.If
any of update fails then I am explicitly thorwing EJBException. Still it is not
rolling back.
I have one more application where similar situation is there but only difference
is that there we have Entity bean and updates are being done through store method.
In that case with same datasource it is rolling back perfectly.
I have tried with transactional datasource as well but it didn't work.Then I tried
to put setAutoCommit(false) in my connection class which gives me connection.But
then it is not allowing me to enter into my application.
In deployment descriptor for both the beans transaction attribute is required
for all methods.
Regards.
Rahul.
-
Transaction Management - App Module in Stateless Session Bean
Hi All,
We are using Application Module in local mode in a Stateless Session Bean. The application module gets the database connection from the datasource of the application server(Oracle 9iAS).
The problem that we are facing is as follows
- When a database update/insert is made using the Application Module and the ViewObject (and the underlying Entity Object), the changes are not being commited.
Please note that we are not using the ApplicationModule.getTransaction.commit() as it does not give us commit/rollback control from another Session Bean/UseCase. We instead are relying on the Container to manager the transaction and commit the database changes. But the container does not seem to refresh the changes to the database.
Q1 - Is there a contract between the container and the application module that needs to be created so that the container managed-transaction and the application module work together ?
Any help in this matter would be greatly appreciated.
-Ankur SinhaQ1 - Is there a contract between the container and the application module that needs to be created so that the container managed-transaction and the application module work together ?For stateless beans you have to call postChanges in the business method for the changes to be applied to the db. For stateful beans bc4j we do that automatically just before the transaction ends.
Take a look at the following howto
http://otn.oracle.com/products/jdev/howtos/bc4j/ejbstateless_with_bc4j.html
In 9.0.3 you'll be able to create a stateless service bean declaritively.
dhiraj Hi dhiraj,
- I looked at the example but was not able to find the ContainerManagedTxnHandlerImpl class in the BC4J jars. Can you point me to the latest version of BC4J on technet ?. I already have JDeveloper 9.0.2
- Regarding your response, what do you mean by creating stateless service bean declaritively ?
Thanks,
Ankur -
Pl Clear my doubts on Stateless session Bean
Is it necessry to Have isolation level and transaction attribute to be mentioned Stateless session Bean.
and where this to be done.
Help is highly appreciatedThere are default (leaving transaction state alone) - so you don't have to specify it.
I'm open to correction: isolation level is specified by the vendor specific configuration whereas transaction attributes are defined in ejb-jar.xml
isolation level is a tuning parameter, whereas the transaction attribute is a design issue.
You shouldn't specify transaction where they don't need. I have seen a number of applications where full transaction level is specified on all methods, and then they wonder why their application is slow.
A transaction is only required if atomic operations are in place. For instance, you don't need transactions on a getter, you may need them though on a setter, iff the setter does more than one thing and those things depend on each other. -
How to use jta in toplink and stateless session bean EJB 3.0?
I have an application with techologies jsf,stateless session bean, adf, toplink
generated by toplink workbench.
In web side ı want to use two methods in stateless session bean which are updated
different tables. I call these methods in my page backing bean.
I also want to JTA in web side. My first methods is done correctly, but second method has an error. I wanto to rollback all transaction.
How can ı do that? with using JTA in Toplink...Yuichi
Did you manage to solve this? I'm doing something similar and seeing the same problem, although they're up to 7.3 SP7.
Any help greatly appreciated.
Lewis -
Some methods not working in EJB 3.0 stateless session bean
Hi,
I am trying to build an application with EJB 3.0 stateless session bean in weblogic 10. In that during build (using ant 1.6) it showing error as one of the ejb-class should have anotataion as @stateless, @stateful or @messageDiven
But i have given it corrrectly.
When I comment some of the methods the same bean is working fine. While i have annoatated some of the methods with @transaction attribute annotataion.
So, should i write all those methods there any particular order or what.
Can anybody pls tell me, what can be the problem as weblogic.appc is giving such error?Hi,
I am trying to build an application with EJB 3.0 stateless session bean in weblogic 10. In that during build (using ant 1.6) it showing error as one of the ejb-class should have anotataion as @stateless, @stateful or @messageDiven
But i have given it corrrectly.
When I comment some of the methods the same bean is working fine. While i have annoatated some of the methods with @transaction attribute annotataion.
So, should i write all those methods there any particular order or what.
Can anybody pls tell me, what can be the problem as weblogic.appc is giving such error?
Maybe you are looking for
-
Remove Powershell Pinned Item from taskbar for all users in 2008 R2 RDS server
Im trying to remove the Powershell Pinned Item from the taskbar on a 2008 RDS server. I have setup a mandatory porfile from a 2008 SP2 server (because you cannot do this in R2 any more), Check the default user pinned items folder, check the registry
-
Problem with specific song constantly repeating - What's going on?
I'm not sure where to enquire on this issue so I've gone here.Most of my listening is putting my Starred playlist on shuffle... But for some reason "Chocolate" by The 1975 seems to be coming up every 20 songs or so. (There's 13k tracks in the playli
-
Hi i have developed a class for the information manipulation of a Line graph I would Like some help in actually drawing the graph so i can pass values manipulated here to the drawing of the graph any help is greatly appreciated thank you package ICUv
-
Where are passwords stored for Safari websites
I thought the place was the Keychain, but where else is are passwords stored? I have jsut done a complete reset of the keychain from keychain Access, and the passwords page shows empty Yet when I go to certain websites, I still get logged in automati
-
HI,Guys. i have one problem in Mass maintance of Quality vendor information. Now we create Q-info by QI01 when buyer notify me and provide material p/n and vendor code to do. i want to know how to mass maintance quality vendor information in SAP( ex