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1. Re: how to use entiy query data model
It is very easy. Create the list and annotate it with @DataModel, then create a factory method that populates the list (the factory method should be of void return type). Like this:
@Name("dataModelTest") public class DataModelTest { @DataModel List<String> messageList = new ArrayList<String>(); @DataModelSelection String selectedString; @Factory("messageList") public void loadMessages() { // Your code retrieves the data for the list messageList.add("One string"); messageList.add("Another string"); messageList.add("Third"); } publc void myAction() { // Here you will see that "selectedString" variable // contains the value of the selected element in the datamodel System.out.println(selectedMessage); } }And on your page:
<h:form> <rich:dataTable var="m" value="#{messageList}"> <rich:column> <h:commandLink action="#{dataModelTest.myAction()}">#{m}</h:commandLink> </rich:column> </rich:dataTable> </h:form>The table lists the strings in the datamodel and a link for each. When you click on the link, the action receives the selected item in the datamodel selection. Of course you can use your own class instead of plain
String
datamodels. -
2. Re: how to use entiy query data model
Thanks Emir,
but I am specifying about the datamodel that is embedded with the EntityQuery. I tried to use it ith my data table but the above exception is coming when I rerendered the table after a search. The binding is as follows,<rich:dataTable id="myList" var="_myList" value="#{myList.dataModel}" rowClasses="row2, row1" transient="true" rendered="#{not empty myList.resultList}">but if I use
#{myList.resultList}
as the value the table renders properly and shows my search results(But as I need to get the selected row for some operations I need to use the datamodel).Any suggestions on this?
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3. Re: how to use entiy query data model
Actually this issue is coming in the Sort template I have added. The complete stack trace is as follows,
01:39:21,638 SEVERE [viewhandler] Error Rendering View[/cpm/gldcrs/LxTwSummaryRateList.xhtml] java.lang.ClassCastException: java.util.ArrayList cannot be cast to javax.faces.model.DataModel at org.jboss.seam.ui.component.UISelection.getValue(UISelection.java:54) at org.jboss.seam.ui.util.ViewUrlBuilder.addParameter(ViewUrlBuilder.java:43) at org.jboss.seam.ui.component.UISeamCommandBase.getUrl(UISeamCommandBase.java:117) at org.jboss.seam.ui.renderkit.LinkRendererBase.doEncodeBegin(LinkRendererBase.java:26) at org.jboss.seam.ui.util.cdk.RendererBase.encodeBegin(RendererBase.java:79) at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:813) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:275) at org.richfaces.renderkit.AbstractTableRenderer.encodeHeaderFacets(AbstractTableRenderer.java:299) at org.richfaces.renderkit.AbstractTableRenderer.encodeHeader(AbstractTableRenderer.java:192) at org.richfaces.renderkit.AbstractTableRenderer.encodeTableStructure(AbstractTableRenderer.java:159) at org.richfaces.renderkit.html.DataTableRenderer.doEncodeBegin(DataTableRenderer.java:160) at org.richfaces.renderkit.html.DataTableRenderer.doEncodeBegin(DataTableRenderer.java:148) at org.ajax4jsf.renderkit.RendererBase.encodeBegin(RendererBase.java:100) at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:813) at javax.faces.component.UIData.encodeBegin(UIData.java:967) at org.ajax4jsf.component.UIDataAdaptor.encodeBegin(UIDataAdaptor.java:1202) at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:275) at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:258) at org.richfaces.renderkit.html.SimpleToggleControlTemplate.doEncodeChildren(SimpleToggleControlTemplate.java:348) at org.richfaces.renderkit.html.SimpleToggleControlTemplate.doEncodeChildren(SimpleToggleControlTemplate.java:343) at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:120) at org.richfaces.renderkit.html.SimpleTogglePanelRenderer.encodeChildren(SimpleTogglePanelRenderer.java:186) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837) at javax.faces.component.UIComponent.encodeAll(UIComponent.java:930) 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:277) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:166) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:83) at org.ajax4jsf.renderkit.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:157) 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:930) 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:176) at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:110) 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.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:295) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:373) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:500) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53) at org.jboss.seam.servlet.SeamFilter$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:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:183) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:95) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) 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:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:451) at java.lang.Thread.run(Thread.java:662)