Jacek,
according to your error
Caused by: java.lang.NullPointerException
at uk.co.apps2net.mfm.repository.
JdbcJobDao.getOps(JdbcJobDao.java:273)
something happens in your data layer, not in myfaces related classes
2009/7/13 Shaun Campbell <[email protected]>
> Jacek
>
> I've updated as you suggested:
>
> <t:dataTable value="#{jobsBean.jobs}" var="job"
> styleClass="jobs" cellspacing="0"
> cellpadding="0" border="0"
> rowClasses="odd,even"
> columnClasses="standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column">
>
> <f:facet name="caption"><h:outputText
> value="Outstanding Jobs"/></f:facet>
>
>
> <h:column>
> <f:facet name="header">
> <h:outputText value="Operations" />
> </f:facet>
>
> <t:dataTable value="#{job.ops}" var="op"
> styleClass="jobs" cellspacing="0"
> cellpadding="0" border="0"
> rowClasses="odd,even"
> columnClasses="standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column">
>
>
> <h:column>
> <h:outputText value="#{op.opNum}"/>
> </h:column>
>
> </t:dataTable>
> </h:column>
>
> </t:dataTable>
>
> I get the error:
>
> 13-Jul-2009 14:26:03 com.sun.facelets.FaceletViewHandler
> handleRenderException
> SEVERE: Error Rendering View[/jobs.xhtml]
> javax.el.ELException: /jobs.xhtml @93,202 value="#{job.ops}": Error reading
> 'ops' on type uk.co.apps2net.mfm.repository.JdbcJobDao
> at
> com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:76)
> at javax.faces.component.UIData.getValue(UIData.java:976)
> at
> org.apache.myfaces.component.html.ext.HtmlDataTableHack.createDataModel(HtmlDataTableHack.java:437)
> at
> org.apache.myfaces.component.html.ext.HtmlDataTable.createDataModel(HtmlDataTable.java:847)
> at
> org.apache.myfaces.component.html.ext.HtmlDataTableHack.getDataModel(HtmlDataTableHack.java:414)
> at
> org.apache.myfaces.component.html.ext.HtmlDataTable.getDataModel(HtmlDataTable.java:839)
> at
> org.apache.myfaces.component.html.ext.HtmlDataTableHack.getRowCount(HtmlDataTableHack.java:87)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:221)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:134)
> at
> org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeChildren(HtmlTableRenderer.java:187)
> at
> javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:543)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:414)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:400)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:417)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.renderColumnBody(HtmlTableRendererBase.java:337)
> at
> org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.renderColumnBody(HtmlTableRenderer.java:613)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeColumnChild(HtmlTableRendererBase.java:306)
> at
> org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeColumnChild(HtmlTableRenderer.java:512)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:282)
> at
> org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:134)
> at
> org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeChildren(HtmlTableRenderer.java:187)
> at
> javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:543)
> at
> javax.faces.component.UIComponent.encodeAll(UIComponent.java:239)
> at
> javax.faces.component.UIComponent.encodeAll(UIComponent.java:246)
> at
> javax.faces.component.UIComponent.encodeAll(UIComponent.java:246)
> at
> com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:578)
> at
> org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
> at
> org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:140)
> at javax.faces.webapp.FacesServlet.service(FacesServlet.java:152)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
> at
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
> at
> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
> at java.lang.Thread.run(Thread.java:619)
> Caused by: java.lang.NullPointerException
> at
> uk.co.apps2net.mfm.repository.JdbcJobDao.getOps(JdbcJobDao.java:273)
> 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:597)
> at javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
> at
> javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
> at
> org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.access$301(FacesCompositeELResolver.java:46)
> at
> org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver$4.invoke(FacesCompositeELResolver.java:108)
> at
> org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.invoke(FacesCompositeELResolver.java:148)
> at
> org.apache.myfaces.el.unified.resolver.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:104)
> at org.apache.el.parser.AstValue.getValue(AstValue.java:118)
> at
> org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
> at
> com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
>
>
>
> 2009/7/13 Jacek Bilski <[email protected]>
>
> Hi Shaun,
>>
>> Shaun Campbell wrote:
>>
>>> I have a scenario which I would have thought would have been
>>> straightforward. I have a backing bean which provides a list of data which
>>> I am able to display to my web page using:
>>>
>>> <h:dataTable value="#{jobsBean.jobs}" var="job"
>>> styleClass="jobs" cellspacing="0"
>>> cellpadding="0" border="0"
>>> rowClasses="odd,even"
>>> columnClasses="standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column,standardTable_Column">
>>>
>>> This all works fine but what I want to do now is do the same thing from
>>> the job variable to print out a sub list for each job. My job class has a
>>> getOps() method which returns another list which I want to display. No
>>> matter what I try to do to access this list I get an error.
>>>
>>
>> Can you paste here this error of yours?
>>
>> In your case I would use Tomahawks dataList for #{jobsBean.jobs}, and for
>> every job I would put dataTable with value=#{job.ops}.
>>
>> Regards
>>
>> Jacek Bilski
>>
>
>
