6 Replies Latest reply on Sep 6, 2007 8:22 AM by Louis Coetzee

    Conversational ?

    Louis Coetzee Apprentice

      Hi,

      we have a problem that used to be addressed by @Conversational. However with Seam 2 I am not sure how to address it. The scenario:

      I have a current long running conversation. During this conversation a page (view.xhtml) is displayed. view.xhtml contains an s:link with an action in a stateful bean:

      <s:link action="#{contentManagementBean.editContent}"
       id="editContents"/>


      Based on the outcome of editContent the pages.xml displays the appropriate edit page.

      The stateful bean has an @In(required=true)
      @In(required = true,value="selectedGroupingForView")
       @Out(required=true)
       private Grouping selectedGroupingForView;


      However, a problem occurs when the long running conversation expires, the various elements in the conversation context are removed, and when the uses then selects the s:link. Obviously the stateful bean cant inject the "required" values, which results an exception.




      Is there anyway to protect/prevent this type of problem ?

      Thanks

      Louis

      Caused by org.jboss.seam.RequiredException with message: "In attribute requires non-null value: contentManagementBean.selectedGroupingForView"
      
      org.jboss.seam.Component.getValueToInject(Component.java:2164)
      org.jboss.seam.Component.injectAttributes(Component.java:1594)
      org.jboss.seam.Component.inject(Component.java:1415)
      org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:45)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      org.jboss.seam.persistence.ManagedEntityIdentityInterceptor.aroundInvoke(ManagedEntityIdentityInterceptor.java:45)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      org.jboss.seam.core.ConversationInterceptor.aroundInvoke(ConversationInterceptor.java:54)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:42)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      org.jboss.seam.persistence.EntityManagerProxyInterceptor.aroundInvoke(EntityManagerProxyInterceptor.java:26)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      org.jboss.seam.persistence.HibernateSessionProxyInterceptor.aroundInvoke(HibernateSessionProxyInterceptor.java:27)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
      org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:50)
      sun.reflect.GeneratedMethodAccessor186.invoke(Unknown Source)
      sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      java.lang.reflect.Method.invoke(Method.java:597)
      org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
      org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
      org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:83)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
      org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
      org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
      org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:204)
      org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:100)
      $Proxy160.editContent(Unknown Source)
      sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      java.lang.reflect.Method.invoke(Method.java:597)
      org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
      org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
      org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:76)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56)
      org.jboss.seam.ejb.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:41)
      org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)
      org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:106)
      org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:54)
      org.javassist.tmp.java.lang.Object_$$_javassist_26.editContent(Object_$$_javassist_26.java)
      sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      java.lang.reflect.Method.invoke(Method.java:597)
      org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:325)
      org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:338)
      org.jboss.el.parser.AstPropertySuffix.invoke(AstPropertySuffix.java:58)
      org.jboss.el.parser.AstValue.invoke(AstValue.java:96)
      org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276)
      org.jboss.seam.core.Expressions$2.invoke(Expressions.java:174)
      org.jboss.seam.navigation.Pages.callAction(Pages.java:620)
      org.jboss.seam.navigation.Pages.preRender(Pages.java:289)
      org.jboss.seam.jsf.SeamPhaseListener.preRenderPage(SeamPhaseListener.java:543)
      org.jboss.seam.jsf.SeamPhaseListener.beforeRenderResponse(SeamPhaseListener.java:455)
      org.jboss.seam.jsf.SeamPhaseListener.beforeServletPhase(SeamPhaseListener.java:146)
      org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:116)
      com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:222)
      com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
      javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
      org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
      org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
      org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:82)
      org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
      org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:68)
      org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
      org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:68)
      org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85)
      org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:68)
      org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
      org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:68)
      org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:44)
      org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:68)
      org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:149)
      org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
      org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
      org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
      org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
      org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
      org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
      org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
      org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
      org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
      org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
      org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
      org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
      org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
      org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
      org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
      org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
      java.lang.Thread.run(Thread.java:619)


        • 1. Re: Conversational ?
          Damian Harvey Master

          I'd be very interested in this too. I had the same issue but took the easy option and made the failing injection required=false.

          • 2. Re: Conversational ?
            Joshua Jackson Master

            Try to bring your ids accross the request by inserting f:param in your s:link

            • 3. Re: Conversational ?
              Pete Muir Master

              Are using no-conversation-view-id and conversation-required in pages.xml? Gavin just documented this yesteday (check the latest build)

              • 4. Re: Conversational ?
                Louis Coetzee Apprentice

                I have the following in my pages.xml. The issue comes in that the method on the bean gets called (which requires all the injections to take place) way before we actually get to the navigation part.

                <page view-id="/public/content/view/viewContent.xhtml"
                no-conversation-view-id="/public/content/view/viewServicesHome.xhtml">
                 <navigation
                 from-action="#{contentManagementBean.editContent}">
                 <rule if-outcome="edit">
                 <redirect
                 view-id="/secure/content/management/editContent.xhtml">
                 </redirect>
                 </rule>
                 </navigation>
                .
                .
                .
                .
                </page>
                
                <page view-id="/secure/content/management/editContent.xhtml"
                conversation-required="true"
                no-conversation-view-id="/public/content/view/viewServicesHome.xhtml">
                .
                .
                .
                
                


                L


                • 5. Re: Conversational ?
                  Pete Muir Master

                  Sorry for the late reply. Is the page the s:link is on marked conversation-required? If it is, then the no-conversation redirect should occur before the s:link action is called.

                  • 6. Re: Conversational ?
                    Louis Coetzee Apprentice

                    Hi Pete. No problem re. the delayed reply.

                    I have rebuilt the latest Seam from CVS today (Sept 6). Somewhere along the line Seam has actually resolved this problem (or it appears that way from my testing ;-).

                    I will deploy this version and keep an eye on the log files and report back if I see those errors again.

                    Thanks

                    Louis