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)