1 Reply Latest reply on Sep 27, 2007 6:57 AM by maksimkaszynski

    Me crazy, or fundamental flaw?

    patrickmadden

      I've struggled with this a few times but now I have to ask. I'm not really complaining as I know how these things happen.

      There is an interface called TreeNode and then there is a concrete implementation called TreeNodeImpl.

      My fear is that RichFaces is tied to the concrete implementaion vs the interface.

      Just copy TreeNodeImpl and call it RichTreeNodeImpl. Search and replace for TreeNodeImpl with RichTreeNodeImpl.

      For the new class RichTreeNodeImpl change the backing bean map from LinkdedHashMap to a standard HashMap. Once I do this I get errors deep inside the code.

      For example:

      java.lang.ClassCastException: com.clooster.web.model.tree.RichTreeNodeImpl cannot be cast to java.util.Map$Entry
       at org.richfaces.model.TreeDataModel.doWalk(TreeDataModel.java:80)
       at org.richfaces.model.TreeDataModel.walk(TreeDataModel.java:139)
       at org.richfaces.component.UITree.walk(UITree.java:320)
       at org.richfaces.renderkit.TreeRendererBase.writeContent(TreeRendererBase.java:616)
       at org.richfaces.renderkit.TreeRendererBase.encodeChildren(TreeRendererBase.java:559)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at org.ajax4jsf.renderkit.RendererBase.renderChild(RendererBase.java:282)
       at org.ajax4jsf.renderkit.RendererBase.renderChildren(RendererBase.java:262)
       at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:199)
       at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:194)
       at org.ajax4jsf.renderkit.RendererBase.encodeChildren(RendererBase.java:121)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
       at javax.faces.render.Renderer.encodeChildren(Renderer.java:137)
       at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
       at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
       at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:577)
       at org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
       at org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)
       at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
       at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
       at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
       at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
       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.MultipartFilter.doFilter(MultipartFilter.java:85)
       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:44)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
       at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
       at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68)
       at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
       at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:150)
       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:179)
       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
       at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
       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:241)
       at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
       at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
       at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
       at java.lang.Thread.run(Thread.java:619)
      



      Please advise.

      Thanks,

      PVM

        • 1. Re: Me crazy, or fundamental flaw?
          maksimkaszynski

          There's nothing wrong in the model. Please consult TreeNode interface javadocs.

           /**
           * getter for children
           * @return {@link Iterator} of {@link Map.Entry} instances containing {@link TreeNode} as values
           * and their identifiers as keys
           */
           public Iterator getChildren();