ExtendedDataTable don't reRender with dynamic columns
ExtendedDataTable, after rerender, throws a NPE when a new Column appears in Rich:columns.
Here is a sample test case :
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:a="http://richfaces.org/a4j"
xmlns:c="http://java.sun.com/jstl/core"
xmlns:rich="http://richfaces.org/rich">
<body>
<f:view>
<h:form id="form">
<rich:extendedDataTable value="#{testBean.rows}" var="row">
<rich:columns value="#{testBean.columns}" var="column" index="ind">
<f:facet name="header">
<h:outputText value="#{column.name}" />
</f:facet>
<h:outputText value="#{row[ind]}" />
</rich:columns>
</rich:extendedDataTable>
<a:commandButton value="Add column" action="#{testBean.addAColumn}" reRender="form" />
</h:form>
</f:view>
</body>
</html>
And backBean code :
@Name("testBean")
@Scope(ScopeType.SESSION)
public class Test {
private static final Log log=Logging.getLog(Test.class);
private List<Column> columns=Arrays.asList(new Column[]{new Column("Col1"),new Column("Col2")});
private List<List<String>> rows=Arrays.asList(
Arrays.asList(new String[]{"a","b"}),
Arrays.asList(new String[]{"d","e"}));
public List<Column> getColumns(){
return columns;
}
public List<List<String>> getRows(){
return rows;
}
public void addAColumn(){
columns=Arrays.asList(new Column[]{new Column("Col1"),new Column("Col2"),new Column("Col3")});
rows=Arrays.asList(Arrays.asList(new String[]{"a","b","c"}),Arrays.asList(new String[]{"d","e","f"}));
}
public class Column {
private String name;
public Column(String name){
this.name=name;
}
public String getName(){
return name;
}
}
}
I think the ExtendedDataTableState is not refreshed correctly when extendeddatatable is rerendered.
Here is the exception :
java.lang.NullPointerException at org.richfaces.component.ColumnsSizeState.getColumnSize(ExtendedDataTableState.java:299) at org.richfaces.component.ExtendedDataTableState.getColumnSize(ExtendedDataTableState.java:159) at org.richfaces.component.UIExtendedDataTable.getColumnSize(UIExtendedDataTable.java:183) at org.richfaces.renderkit.AbstractExtendedTableRenderer.encodeColumns(AbstractExtendedTableRenderer.java:130) at org.richfaces.renderkit.html.ExtendedDataTableRenderer.doEncodeBegin(ExtendedDataTableRenderer.java:301) at org.richfaces.renderkit.html.ExtendedDataTableRenderer.doEncodeBegin(ExtendedDataTableRenderer.java:236) at org.ajax4jsf.renderkit.RendererBase.encodeBegin(RendererBase.java:101) at org.richfaces.renderkit.AbstractExtendedTableRenderer.encodeBegin(AbstractExtendedTableRenderer.java:1346) at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:813) at javax.faces.component.UIData.encodeBegin(UIData.java:962) at org.ajax4jsf.component.UIDataAdaptor.encodeBegin(UIDataAdaptor.java:1220) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:934) at javax.faces.render.Renderer.encodeChildren(Renderer.java:148) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:124) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:67) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:115) at org.ajax4jsf.renderkit.AjaxContainerRenderer.encodeAjax(AjaxContainerRenderer.java:123) at org.ajax4jsf.component.AjaxViewRoot.encodeAjax(AjaxViewRoot.java:677) at org.ajax4jsf.component.AjaxViewRoot.encodeChildren(AjaxViewRoot.java:548) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:936) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:592) at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:100) at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:197) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:109) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:266) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292) at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:195) at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:159) at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:141) at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:90) at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:406) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:38) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:307) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:423) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:550) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:51) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) 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:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:619)
Thanks to have a look to this issue.
