4 Replies Latest reply on Jan 25, 2007 7:44 PM by Gus Gu

    How to automatically end a conversation if fail to click @En

    Gus Gu Expert

      Hi,

      I still cannot figure out how to let system automatically end a conversation if I accidentally click an action other than the @End action. The conversation is as followings:

      @Begin
       public String createInstance() {
       ...
       return "page1";
       }
      
       @End
       public String create() {
       ...
       return "page2";
       }

      If I click @Begin, then accidentally click other action(not the @End). When I come back, and click @Begin again, I always get the following exceptions. It seems that the previous conversation is still there. Anybody can give me some guidance? I really appreciate it.
      javax.ejb.EJBTransactionRolledbackException: java.lang.IllegalStateException: begin method invoked from a long running conversation, try using @Begin(join=true)
       at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:93)
       at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
       at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:201)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:83)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
       at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:131)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:203)
       at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:98)
       at $Proxy134.createInstance(Unknown Source)
       at com.cvn.controller.common.BaseEditor$$FastClassByCGLIB$$f0d46.invoke(<generated>)
       at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
       at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:45)
       at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:74)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:55)
       at org.jboss.seam.interceptors.RemoveInterceptor.removeIfNecessary(RemoveInterceptor.java:40)
       at sun.reflect.GeneratedMethodAccessor186.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.interceptors.ExceptionInterceptor.handleExceptions(ExceptionInterceptor.java:39)
       at sun.reflect.GeneratedMethodAccessor158.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.intercept.RootInterceptor.createSeamInvocationContext(RootInterceptor.java:144)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:129)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:102)
       at org.jboss.seam.intercept.ClientSideInterceptor.interceptInvocation(ClientSideInterceptor.java:83)
       at org.jboss.seam.intercept.ClientSideInterceptor.intercept(ClientSideInterceptor.java:52)
       at org.jboss.seam.intercept.Proxy$$EnhancerByCGLIB$$3e3ab2d1.createInstance(<generated>)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at com.sun.el.parser.AstValue.invoke(AstValue.java:151)
       at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:283)
       at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
       at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
       at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:63)
       at javax.faces.component.UICommand.broadcast(UICommand.java:106)
       at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:94)
       at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:136)
       at org.apache.myfaces.lifecycle.LifecycleImpl.applyRequestValues(LifecycleImpl.java:219)
       at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:71)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at com.cvn.custom.util.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:132)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:46)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
       at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
       at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
       at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
       at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
       at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
       at java.lang.Thread.run(Thread.java:595)
      Caused by: java.lang.IllegalStateException: begin method invoked from a long running conversation, try using @Begin(join=true)
       at org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:43)
       at sun.reflect.GeneratedMethodAccessor161.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27)
       at sun.reflect.GeneratedMethodAccessor160.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.seam.util.Reflections.invoke(Reflections.java:18)
       at org.jboss.seam.intercept.Interceptor.aroundInvoke(Interceptor.java:169)
       at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:64)
       at org.jboss.seam.intercept.RootInterceptor.createSeamInvocationContext(RootInterceptor.java:144)
       at org.jboss.seam.intercept.RootInterceptor.invokeInContexts(RootInterceptor.java:129)
       at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:102)
       at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50)
       at sun.reflect.GeneratedMethodAccessor159.invoke(Unknown Source)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
       at java.lang.reflect.Method.invoke(Method.java:585)
       at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
       at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
       at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
       at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
       ... 84 more
      21:39:45,703 INFO [ExtensionsFilter] Do filter.....


        • 1. Re: How to automatically end a conversation if fail to click
          Gavin King Master

           

          I accidentally click an action other than the @End action.


          Define what you mean by this.

          • 2. Re: How to automatically end a conversation if fail to click
            Gus Gu Expert

            Hi Gavin,

            Thank you very much for your quick help. My situation is typical, I think. For example, when a user checks out an order, but before he place the order, he doesn't want the order, but he also didn't click cancel button. He continues to view products just clicking product categories. After he views other products, he place a new order. At this situation, I want to let system automatically end the previous conversation, in order to let user begin a new conversation. But I don't know how to handle this situation. Thank you.

            • 3. Re: How to automatically end a conversation if fail to click
              Gavin King Master

              Your problem seems to be that you don't have a well-defined navigation model. You talk about "accidently clicking another action" taking you back to a place where a conversation can begin. This should never happen. The only way to get to a conversation begin point should be via a link that does not propagate the conversation context. Not via an "action".

              • 4. Re: How to automatically end a conversation if fail to click
                Gus Gu Expert

                Hi Gavin,

                I apologize for my poor description. Now, I got a little idea on the conversation concept. I tried Seam-issues project. What I did is:
                ->home page -> click "Create" project (@Begin createInstance) -> go to "edit project" page -> click home link and go to home page -> click "Create" project (@Begin createInstance) -> go to "edit project" page. (in this process I did not input project name to create new project). Then, when I went back to home again, two conversations was listed. That is correct.

                However, in my project, when I did the following process -> study home -> click "Create" study (@Begin createInstance) -> go to "edit study" page -> click study home link and go to study home again -> click "Create" study (@Begin createInstance), then I got the following exception:

                18:01:00,494 ERROR [Exceptions] redirecting to debug page
                javax.ejb.EJBTransactionRolledbackException: java.lang.IllegalStateException: begin method invoked from a long running conversation, try using @Begin(join=true)
                The detailed exceptions were listed in the first posting above. I think I missed some setting, then system cannot create a new conversation when click "Create" on second time. Could you please give me some guidance? Thank you very much.