Problem with "rendered" Flag

I want to show a list of data to the user. My problem is that if I set the 'rendered' flag of <h

utputText> to 'false' just the header of the table appears (not the whole information) ... and if I set it to 'true', the page throws an exception.

Here are the codes I have written so far :

This is a part of my jsp code:

<f:view>
                                            <body> 
                                                
                                              <h:form>
            <h :D ataTable value="#{tableData.userLogs}" var="userLogs">
                         
            <h:column>
                <f:facet name="header">
                    <h :o utputText value="#{msgs.lastColumnHeader}" 
                                  style="font-weight: bold"/>   
                </f:facet>
               
                <h :o utputText value="#{userLogs.userlog}" rendered="true"/>
            </h:column>
            
            <h:column></h:column><h:column></h:column><h:column></h:column>
            <h:column></h:column><h:column></h:column><h:column></h:column>
            
               <h:column>
                  <f:facet name="header">
                     <h :o utputText value="#{msgs.firstColumnHeader}" 
                        style="font-weight: bold"/>
                  </f:facet>
                 
                  <h :o utputText value="#{userLogs.datelog}" rendered="true"/>
               </h:column>
                 
            </h :D ataTable>
         </h:form>
                                             
                                            </body>
</f:view>

Here is the source code of TableData.java :

This part has been taken from faces-config.xml :

& this is my bean class :

please kindly help me,
Thank you,
Maryam
[ June 10, 2007: Message edited by: Maryam Nouhnejad ]
[ June 10, 2007: Message edited by: Maryam Nouhnejad ]

You're getting an exception with the rendered attribute because when you set it to true, it actually executes the methods of the bean, and there you have the problem.
I didn't look closely at your code, can you post the exception?
Setting rendered =true for the different components will help you to isolate where the problem lies

These are the exceptions printed in the log console :

org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
javax.faces.el.PropertyNotFoundException: Error getting property 'userlog' from bean of type beanPack.UserLogs
        at com.sun.faces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:107)
        at com.sun.rave.faces.data.ResultSetPropertyResolver.getValue(ResultSetPropertyResolver.java:67)
        at com.sun.faces.el.impl.ArraySuffix.evaluate(ArraySuffix.java:167)
        at com.sun.faces.el.impl.ComplexValue.evaluate(ComplexValue.java:151)
        at com.sun.faces.el.impl.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:243)
        at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:173)
        at com.sun.faces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:154)
        at javax.faces.component.UIOutput.getValue(UIOutput.java:147)
        at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:82)
        at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:191)
        at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:169)
        at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:720)
        at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:443)
        at com.sun.faces.renderkit.html_basic.TableRenderer.encodeChildren(TableRenderer.java:257)
        at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:701)
        at javax.faces.webapp.UIComponentTag.encodeChildren(UIComponentTag.java:607)
        at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:544)
        at com.sun.faces.taglib.html_basic.DataTableTag.doEndTag(DataTableTag.java:491)
        at org.apache.jsp.userLoggings_jsp._jspx_meth_h_dataTable_0(userLoggings_jsp.java:315)
        at org.apache.jsp.userLoggings_jsp._jspx_meth_h_form_0(userLoggings_jsp.java:259)
        at org.apache.jsp.userLoggings_jsp._jspx_meth_f_view_0(userLoggings_jsp.java:225)
        at org.apache.jsp.userLoggings_jsp._jspService(userLoggings_jsp.java:131)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
        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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
        at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
        at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285)
        at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
        at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
        at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
        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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
        at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
        at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285)
        at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
        at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
        at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
        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.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)

org.apache.catalina.core.ApplicationContext log
SEVERE: org.apache.jasper.JasperException: javax.servlet.jsp.JspException: Error getting property 'userlog' from bean of type beanPack.UserLogs
javax.faces.FacesException: org.apache.jasper.JasperException: javax.servlet.jsp.JspException: Error getting property 'userlog' from bean of type beanPack.UserLogs
        at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:327)
        at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
        at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285)
        at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
        at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
        at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
        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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
        at com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
        at com.sun.rave.web.ui.appbase.faces.ViewHandlerImpl.renderView(ViewHandlerImpl.java:285)
        at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
        at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
        at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
        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.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.apache.jasper.JasperException: javax.servlet.jsp.JspException: Error getting property 'userlog' from bean of type beanPack.UserLogs
        at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
        at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)
        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.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
        at com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
        ... 39 more

Thank you,
Maryam

My problem is over now...

I changed the first code to the second (look at the names of the setters and getters) :

Yep, the exception message tells everything:
"Error getting property 'userlog' from bean of type beanPack.UserLogs"
"userlogs" in bean notation is "getUserlogs" and in your bean you had "getUserLogs"
Glad you had it working now