problem with HtmlScrollableDataTable + ListDataModel
Hi All
I am trying to create the ListDataModel
The code as below
I have extended my class with HtmlScrollableDataTable
public class MyClass extends HtmlScrollableDataTable {
public static final String ROW_VAR = "row";
public static final String ROW_KEY_VAR = "rkv";
private List<List<String>> list = new ArrayList<List<String>>();
@Override
public String getRowKeyVar() {
return ROW_KEY_VAR;
}
@Override
public String getVar() {
return ROW_VAR;
}
@Override
public Object getValue() {
DataModel data = new ListDataModel();
//Here i am getting the list and creating dynamic columns
// this list has columnheaders and the and the data
String[] columnHeaders = workBecnhData.getColumnHeaders();
data.setWrappedData(list );
createColumns(columnHeaders );
return data;
}
private void createColumns(String[] columnHeaders) {
FacesContext context = FacesContext.getCurrentInstance();
this.getChildren().clear();
this.setRowKeyVar(ROW_KEY_VAR);
this.setVar(ROW_VAR);
for (int i = 0; i < list.get(0).size(); i++) {
HtmlColumn column = new HtmlColumn();
this.getChildren().add(column);
HtmlOutputText header = new HtmlOutputText();
header.setValue(columnHeaders);
column.setHeader(header);
HtmlOutputText output = new HtmlOutputText();
output.setValueExpression("value", context.getApplication()
.getExpressionFactory().createValueExpression(
context.getELContext(),
"#{" + ROW_VAR + "[" + i + "]}", String.class));
column.getChildren().add(output);
}
}
}
Looks like successfully its creating the model and columns.
but it throws following exception
I use the following code on my facelet file
<my:dataTag rows="3" height="200px" width="500px" objectType="ObjectType" />
depending upon objectType gets the data from database
It works fine if I use org.richfaces.component.html.HtmlDataTable and HtmlColumn
Any Suggestions?
javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /portals/Base/facelets/client/ws/SmAuthor/SmAuthor.xhtml][Class: org.apache.myfaces.custom.div.Div,Id: displayarea][Class: org.ajax4jsf.component.html.HtmlAjaxOutputPanel,Id: j_id22][Class: org.ajax4jsf.component.html.AjaxForm,Id: UISpecs_Workbench-f][Class: com.msc.sdm.ui.widget.toolkit.jsf.composite.FacesUILayout,Id: UISpecs_Workbench][Class: org.apache.myfaces.custom.div.Div,Id: j_id40][Class: org.apache.myfaces.custom.div.Div,Id: j_id44][Class: org.apache.myfaces.component.html.ext.HtmlPanelGroup,Id: j_id45]}
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:610)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:522)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:499)
at org.apache.myfaces.custom.htmlTag.HtmlTagRenderer.encodeChildren(HtmlTagRenderer.java:86)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:594)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:516)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:499)
at org.apache.myfaces.custom.htmlTag.HtmlTagRenderer.encodeChildren(HtmlTagRenderer.java:86)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:594)
at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:284)
at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:284)
at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
at org.ajax4jsf.renderkit.html.AjaxOutputPanelRenderer.encodeChildren(AjaxOutputPanelRenderer.java:79)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:594)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:516)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:499)
at org.apache.myfaces.custom.htmlTag.HtmlTagRenderer.encodeChildren(HtmlTagRenderer.java:86)
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:594)
at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:125)
at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:68)
at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:116)
at org.ajax4jsf.renderkit.AjaxContainerRenderer.encodeAjax(AjaxContainerRenderer.java:123)
at org.ajax4jsf.component.AjaxViewRoot.encodeAjax(AjaxViewRoot.java:673)
at org.ajax4jsf.component.AjaxViewRoot.encodeChildren(AjaxViewRoot.java:544)
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:239)
at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592)
at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:189)
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 com.msc.sdm.web.faces.SmFacesServlet.service(SmFacesServlet.java:130)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at com.msc.sdm.web.filters.ResolveFileFilter.smDoFilter(ResolveFileFilter.java:199)
at com.msc.sdm.web.filters.ResolveFileFilter.doFilter(ResolveFileFilter.java:54)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:301)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:154)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:260)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:366)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:493)
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: javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /portals/Base/facelets/client/ws/SmAuthor/SmAuthor.xhtml][Class: org.apache.myfaces.custom.div.Div,Id: displayarea][Class: org.ajax4jsf.component.html.HtmlAjaxOutputPanel,Id: j_id22][Class: org.ajax4jsf.component.html.AjaxForm,Id: UISpecs_Workbench-f][Class: com.msc.sdm.ui.widget.toolkit.jsf.composite.FacesUILayout,Id: UISpecs_Workbench][Class: org.apache.myfaces.custom.div.Div,Id: j_id40][Class: org.apache.myfaces.custom.div.Div,Id: j_id44][Class: org.apache.myfaces.component.html.ext.HtmlPanelGroup,Id: j_id45][Class: com.msc.sdm.ui.widget.toolkit.jsf.basic.FacesPanel,Id: SMWorkbenchPage]}
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:610)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:522)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:499)
at org.apache.myfaces.renderkit.html.ext.HtmlGroupRenderer.encodeEnd(HtmlGroupRenderer.java:71)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:607)
... 62 more
Caused by: javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /portals/Base/facelets/client/ws/SmAuthor/SmAuthor.xhtml][Class: org.apache.myfaces.custom.div.Div,Id: displayarea][Class: org.ajax4jsf.component.html.HtmlAjaxOutputPanel,Id: j_id22][Class: org.ajax4jsf.component.html.AjaxForm,Id: UISpecs_Workbench-f][Class: com.msc.sdm.ui.widget.toolkit.jsf.composite.FacesUILayout,Id: UISpecs_Workbench][Class: org.apache.myfaces.custom.div.Div,Id: j_id40][Class: org.apache.myfaces.custom.div.Div,Id: j_id44][Class: org.apache.myfaces.component.html.ext.HtmlPanelGroup,Id: j_id45][Class: com.msc.sdm.ui.widget.toolkit.jsf.basic.FacesPanel,Id: SMWorkbenchPage][Class: org.apache.myfaces.component.html.ext.HtmlPanelGroup,Id: j_id50]}
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:610)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:522)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBase.renderChildren(HtmlGridRendererBase.java:231)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBase.encodeEnd(HtmlGridRendererBase.java:102)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:607)
... 66 more
Caused by: javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /portals/Base/facelets/client/ws/SmAuthor/SmAuthor.xhtml][Class: org.apache.myfaces.custom.div.Div,Id: displayarea][Class: org.ajax4jsf.component.html.HtmlAjaxOutputPanel,Id: j_id22][Class: org.ajax4jsf.component.html.AjaxForm,Id: UISpecs_Workbench-f][Class: com.msc.sdm.ui.widget.toolkit.jsf.composite.FacesUILayout,Id: UISpecs_Workbench][Class: org.apache.myfaces.custom.div.Div,Id: j_id40][Class: org.apache.myfaces.custom.div.Div,Id: j_id44][Class: org.apache.myfaces.component.html.ext.HtmlPanelGroup,Id: j_id45][Class: com.msc.sdm.ui.widget.toolkit.jsf.basic.FacesPanel,Id: SMWorkbenchPage][Class: org.apache.myfaces.component.html.ext.HtmlPanelGroup,Id: j_id50][Class: com.msc.sdm.ui.widget.toolkit.jsf.basic.FacesPanel,Id: WdWBwkbnch]}
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:610)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:522)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:499)
at org.apache.myfaces.renderkit.html.ext.HtmlGroupRenderer.encodeEnd(HtmlGroupRenderer.java:71)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:607)
... 70 more
Caused by: javax.faces.FacesException: Exception while calling encodeEnd on component : {Component-Path : [Class: org.ajax4jsf.component.AjaxViewRoot,ViewId: /portals/Base/facelets/client/ws/SmAuthor/SmAuthor.xhtml][Class: org.apache.myfaces.custom.div.Div,Id: displayarea][Class: org.ajax4jsf.component.html.HtmlAjaxOutputPanel,Id: j_id22][Class: org.ajax4jsf.component.html.AjaxForm,Id: UISpecs_Workbench-f][Class: com.msc.sdm.ui.widget.toolkit.jsf.composite.FacesUILayout,Id: UISpecs_Workbench][Class: org.apache.myfaces.custom.div.Div,Id: j_id40][Class: org.apache.myfaces.custom.div.Div,Id: j_id44][Class: org.apache.myfaces.component.html.ext.HtmlPanelGroup,Id: j_id45][Class: com.msc.sdm.ui.widget.toolkit.jsf.basic.FacesPanel,Id: SMWorkbenchPage][Class: org.apache.myfaces.component.html.ext.HtmlPanelGroup,Id: j_id50][Class: com.msc.sdm.ui.widget.toolkit.jsf.basic.FacesPanel,Id: WdWBwkbnch][Class: com.msc.sdm.ui.widget.toolkit.jsf.basic.FacesWorkBench,Id: j_id51]}
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:610)
at javax.faces.component.UIData.encodeEnd(UIData.java:533)
at org.richfaces.component.UIScrollableDataTable.encodeEnd(UIScrollableDataTable.java:353)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:522)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBase.renderChildren(HtmlGridRendererBase.java:231)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBase.encodeEnd(HtmlGridRendererBase.java:102)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:607)
... 74 more
Caused by: java.lang.NullPointerException: expr
at javax.faces.component.UIComponentBase.findComponent(UIComponentBase.java:407)
at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer.getColumnSorting(ScrollableDataTableBaseRenderer.java:947)
at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer.access$300(ScrollableDataTableBaseRenderer.java:45)
at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer$2.renderContent(ScrollableDataTableBaseRenderer.java:161)
at org.richfaces.renderkit.html.ExtendedColumnVisitor.visit(ExtendedColumnVisitor.java:31)
at org.richfaces.renderkit.html.ColumnWalker.iterateOverColumns(ColumnWalker.java:43)
at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer.renderHeaders(ScrollableDataTableBaseRenderer.java:544)
at org.richfaces.renderkit.html.ScrollableDataTableRenderer.doEncodeEnd(ScrollableDataTableRenderer.java:343)
at org.richfaces.renderkit.html.ScrollableDataTableRenderer.doEncodeEnd(ScrollableDataTableRenderer.java:602)
at org.ajax4jsf.renderkit.RendererBase.encodeEnd(RendererBase.java:135)
at org.richfaces.renderkit.html.ScrollableDataTableBaseRenderer.encodeEnd(ScrollableDataTableBaseRenderer.java:830)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:607)
... 80 more
