Runtime error using Tomahawk dataTable + selectBooleanCheckboxes (MyFaces 1.1.1)
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Key: MYFACES-817
URL: http://issues.apache.org/jira/browse/MYFACES-817
Project: MyFaces
Type: Bug
Components: Tomahawk
Versions: 1.1.1
Environment: Windows XP Prof., jboss-4.0.1sp1 for the J2EE™ 1.4 codebase
Reporter: Matthias Kahlau
Priority: Blocker
I have a problem with the Tomahawk dataTable component, in conjunction with
a selectBooleanCheckbox in each row. I use a Component-Binding for each
component, and determining the selected
checkboxes works well. But after that, I get the following runtime error:
null
java.lang.NullPointerException
at
org.apache.myfaces.component.html.ext.HtmlDataTableHack.restoreDescendantComponentStates(HtmlDataTableHack.java:245)
at
org.apache.myfaces.component.html.ext.HtmlDataTableHack.restoreDescendantComponentStates(HtmlDataTableHack.java:257)
at
org.apache.myfaces.component.html.ext.HtmlDataTableHack.setRowIndex(HtmlDataTableHack.java:200)
at
org.apache.myfaces.component.html.ext.HtmlDataTable.setRowIndex(HtmlDataTable.java:166)
at
javax.faces.component.html.HtmlDataTable.encodeBegin(HtmlDataTable.java:35)
at
org.apache.myfaces.component.html.ext.HtmlDataTableHack.encodeBegin(HtmlDataTableHack.java:126)
at
org.apache.myfaces.component.html.ext.HtmlDataTable.encodeBegin(HtmlDataTable.java:312)
at
org.apache.myfaces.renderkit.RendererUtils.renderChild(RendererUtils.java:441)
at
org.apache.myfaces.renderkit.RendererUtils.renderChildren(RendererUtils.java:427)
at
org.apache.myfaces.renderkit.html.HtmlGroupRendererBase.encodeEnd(HtmlGroupRendererBase.java:62)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:331)
at
org.apache.myfaces.renderkit.RendererUtils.renderChild(RendererUtils.java:450)
at
org.apache.myfaces.custom.tabbedpane.HtmlTabbedPaneRenderer.writeTabsContents(HtmlTabbedPaneRenderer.java:535)
at
org.apache.myfaces.custom.tabbedpane.HtmlTabbedPaneRenderer.encodeEnd(HtmlTabbedPaneRenderer.java:227)
at
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:331)
at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:349)
at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:253)
at
org.apache.myfaces.taglib.UIComponentBodyTagBase.doEndTag(UIComponentBodyTagBase.java:55)
at
org.apache.jsp.Management.ManagementHome_jsp._jspx_meth_t_panelTabbedPane_0(ManagementHome_jsp.java:302)
at
org.apache.jsp.Management.ManagementHome_jsp._jspx_meth_h_form_0(ManagementHome_jsp.java:238)
at
org.apache.jsp.Management.ManagementHome_jsp._jspx_meth_f_view_0(ManagementHome_jsp.java:191)
at
org.apache.jsp.Management.ManagementHome_jsp._jspService(ManagementHome_jsp.java:145)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:704)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:474)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:409)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at
org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
at
org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
at
org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:122)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:66)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:150)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:54)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at
org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
----------------
Part of JSP:
----------------
<t:dataTable id="dataTableUmfragen"
binding="#{UmfrageBacking.dataTable}"
lang="de"
title="Tabelle zur Auswahl eigener Umfragen"
summary="Tabelle zur Übersicht und Auswahl eigener Umfragen"
value="#{UmfrageBacking.durchfuehrungen}"
var="row"
rows="10"
renderedIfEmpty="true"
preserveDataModel="false"
preserveSort="true"
sortColumn="#{UmfrageBacking.sortColumn}"
sortAscending="#{UmfrageBacking.sortAscending}"
styleClass=""
headerClass=""
footerClass=""
rowClasses=""
columnClasses=""
rowOnMouseOver="this.style.backgroundColor='#A5CBFF'"
rowOnMouseOut="this.style.backgroundColor='#FFFFE0'"
rowOnClick="this.style.backgroundColor='#FFE0E0'"
rowOnDblClick="this.style.backgroundColor='#E0E0E0'"
width="700">
<t:column width="30">
<h:selectBooleanCheckbox binding="#{UmfrageBacking.checkbox}"
title="Umfrage auswählen zur Ausführung einer Aktion" />
</t:column>
<t:column>
<f:facet name="header">
<t:commandSortHeader
columnName="#{UmfrageBacking.colName_Bezeichnung}"
arrow="true"
lang="de"
title="#{managementBundle.sort_message}">
<h:outputText value="#{UmfrageBacking.colName_Bezeichnung}"/>
</t:commandSortHeader>
</f:facet>
<h:commandLink action="#{UmfrageBacking.edit}">
<h:outputText value="#{row.bezeichnung}"/>
</h:commandLink>
</t:column>
....
</t:dataTable>
------------------------------
Part of Backing-Bean:
------------------------------
// Declarations for the component bindings
private UIData dataTable;
private UISelectBoolean checkbox;
// action method to delete the selected items
public String delete() {
List currentUmfragen = (List)this.durchfuehrungen.getWrappedData();
List toDelete = this.getSelectedDurchfuehrungen();
int size = toDelete.size();
for (int i = 0; i < size; i++) {
currentUmfragen.remove(toDelete.get(i));
}
return Constants.ACTION_SUCCESS;
}
// method to determine the selected items
private List getSelectedDurchfuehrungen() {
List selected = new ArrayList();
int first = this.dataTable.getFirst();
int rows = this.dataTable.getRows();
for (int i = first; i < (first + rows); i++) {
this.dataTable.setRowIndex(i);
if (this.checkbox.isSelected()) {
selected.add(this.dataTable.getRowData());
}
}
return selected;
}
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