[jboss-user] [JBoss Seam] - Question on using @DataModelSelection & open a page in a new
lle
do-not-reply at jboss.com
Thu Dec 21 13:52:47 EST 2006
hi all,
In our application, there's this specific use case and I am trying to use @DataModelSelection and s:link. However, I might use them incorrectly, since it doesn't work.
I have a datatable, backed by a @DataModel list. I would like something like a clickable list example. However, the user can click anywhere on the row to select the item (not localized to one <s:link> like in the example). After the user click on the row, he can decide to click on a "show details" button to see the details screen in a new window.
Here are my questions:
1. For the entire row to be clickable, do I have to put <s:link> to all columns? I am currently using t:dataTable and have a javascript onclick function to highlight the selected row. However, I am not sure how can I make a call to the server when a user clicks anywhere on the row instead of a link in a column. Do you know any good solution?
2. When a user click on the row with no call yet made to the server, and then the user clicks on the "show details" link (which is an <s:link>), I would like to start a new conversation in a new window. How can I achieve the new page to be rendered in a new window?
3. I also would like to start the conversation with explicit conversation id = selected_item.id. However, I got the following error:
2006.12.21 10:34:33,974 WARN [Interpolator] exception interpolating string: #{selectedSession.id}
| javax.faces.el.EvaluationException: Cannot get value for expression '#{selectedSession.id}'
| at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:405)
| at org.jboss.seam.core.Expressions$1.getValue(Expressions.java:51)
| at org.jboss.seam.core.Interpolator.interpolateExpressions(Interpolator.java:83)
| at org.jboss.seam.core.Interpolator.interpolate(Interpolator.java:59)
| at org.jboss.seam.interceptors.ConversationInterceptor.redirectToExistingConversation(ConversationInterceptor.java:76)
| at org.jboss.seam.interceptors.ConversationInterceptor.endOrBeginLongRunningConversation(ConversationInterceptor.java:45)
| at sun.reflect.GeneratedMethodAccessor155.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:38)
| at sun.reflect.GeneratedMethodAccessor153.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:148)
| 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.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:144)
| at org.jboss.seam.intercept.JavaBeanInterceptor.intercept(JavaBeanInterceptor.java:79)
| at com.ga.riskapp.session.action.GAAccountDetailsAction$$EnhancerByCGLIB$$8b9fbc3e.findSessions(<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 org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:132)
| at org.jboss.seam.actionparam.ActionParamBindingHelper.invokeTheExpression(ActionParamBindingHelper.java:59)
| at org.jboss.seam.actionparam.ActionParamMethodBinding.invoke(ActionParamMethodBinding.java:71)
| at org.jboss.seam.core.Expressions$2.invoke(Expressions.java:98)
| at org.jboss.seam.core.Pages.callAction(Pages.java:398)
| at org.jboss.seam.jsf.AbstractSeamPhaseListener.callPageActions(AbstractSeamPhaseListener.java:253)
| at org.jboss.seam.jsf.AbstractSeamPhaseListener.beforeRender(AbstractSeamPhaseListener.java:201)
| at org.jboss.seam.jsf.SeamPhaseListener.beforePhase(SeamPhaseListener.java:51)
| at org.apache.myfaces.lifecycle.PhaseListenerManager.informPhaseListenersBefore(PhaseListenerManager.java:73)
| at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:126)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:140)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._invokeDoFilter(TrinidadFilterImpl.java:326)
| at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:290)
| at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:213)
| at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:90)
| 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.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:75)
| at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:213)
| 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.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
| 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.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
| at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: selectedSession
| at org.jboss.seam.Component.newInstance(Component.java:1722)
| at org.jboss.seam.Component.getInstance(Component.java:1625)
| at org.jboss.seam.Component.getInstance(Component.java:1592)
I think it is because the selected item was not yet outjected since I didn't make any call to the server when a row is clicked.
Do you know any good approach for this use case?
Thanks a lot.
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