4 Replies Latest reply on Oct 1, 2012 7:40 AM by Felix G.

    rich:extendedDataTable - Selection mess

    Felix G. Newbie

      Hello,

      The problem: There is a very large (>3000 elems) list of objects and the user should select one or many of this objects to create a set of this objects.

       

      First attempt: Initially I wanted to use the rich:pickList, on the left side my elems and on the right side the selected ones. Works great, but nobody wants to scroll through 3000 items, so I added a filter function. It consits of an h:inputText and an a4j:commandLink. The large list was filtered in the backend bean and overwrite and re-render the f:selectedItems value of the rich:pickList. Works well, but the right side forgot all selected items :-(

       

      Second attempt: I use two rich:extendedDataTables to make my own "pick list". And than the trouble starts again, selection doesn't work. Here is the code for the table:

       

      <rich:extendedDataTable id="sourceAttr"
                              value="#{manageJourneyEditorBean.sourceAttr}" var="srcAttr"
                              selectionMode="multiple"
                              selection="#{manageJourneyEditorBean.selectionSourceAttr}"
                              rows="10" >
                              <f:ajax event="selectionchange"
                                  listener="#{manageJourneyEditorBean.sourceSelection()}" />
                              <rich:column width="60px">
                                  <f:facet name="header">Code</f:facet>
                                  <h:outputText value="#{srcAttr.abbreviation}" />
                              </rich:column>
                              <rich:column width="auto">
                                  <f:facet name="header">Name</f:facet>
                                  <h:outputText value="#{srcAttr.name}" />
                              </rich:column>
      
                              <!-- pagination on bottom -->
                              <f:facet name="footer">
                                  <rich:dataScroller id="dataScrollerSrc" for="sourceAttr"
                                      maxPages="5" />
                              </f:facet>
                          </rich:extendedDataTable>
      

       

      I tried either the a4j:support, but no other result. I get into my method sourceSelection and the selectionSourceAttr (List<Integer>) contains the positions of the selected elements. Okay, I manged to make a list of Attributes of this named selectedSourAttr (List<Attribute>) and it works. Now I got the selected elements and want to move them to the other table, there for I have  a4j:commandLinks:

       

      <h:panelGrid columns="1" id="shuttleButtons"
                              styleClass="shuttleButtons">
                              <a4j:commandButton value="&gt;&gt;"
                                  actionListener="#{manageJourneyEditorBean.all2Target()}"
                                  render=":sourceAttr, : targetAttrT" />
                              <a4j:commandButton value="&gt;"
                                  actionListener="#{manageJourneyEditorBean.selection2Target()}"
                                  render=":sourceAttr, : targetAttrT" />
                              <a4j:commandButton value="&lt;"
                                  actionListener="#{manageJourneyEditorBean.selection2Source()}"
                                  render=":sourceAttr, : targetAttrT" />
                              <a4j:commandButton value="&lt;&lt;"
                                  actionListener="#{manageJourneyEditorBean.all2Source()}"
                                  render=":sourceAttr, : targetAttrT" />
                          </h:panelGrid>
      

       

      When I click one of this links, I get an exception and I have no idea where this came from:

       

      Warnung: String index out of range: 0
      java.lang.StringIndexOutOfBoundsException: String index out of range: 0
          at java.lang.String.charAt(String.java:695)
          at org.richfaces.context.ComponentIdResolver.isAbsolute(ComponentIdResolver.java:256)
          at org.richfaces.context.ComponentIdResolver.buildInversedFilteredTreeRecursively(ComponentIdResolver.java:264)
          at org.richfaces.context.ComponentIdResolver.resolve(ComponentIdResolver.java:522)
          at org.richfaces.renderkit.util.CoreRendererUtils.findComponentsFor(CoreRendererUtils.java:140)
          at org.richfaces.context.RenderComponentCallback.doVisit(RenderComponentCallback.java:86)
          at org.richfaces.context.ExecuteComponentCallback.doVisit(ExecuteComponentCallback.java:47)
          at org.richfaces.context.ComponentCallback.visit(ComponentCallback.java:94)
          at org.richfaces.context.BaseExtendedVisitContext.invokeVisitCallback(BaseExtendedVisitContext.java:321)
          at javax.faces.component.UIComponent.visitTree(UIComponent.java:1612)
          at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
          at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
          at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
          at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
          at javax.faces.component.UIForm.visitTree(UIForm.java:371)
          at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
          at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
          at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
          at org.richfaces.context.ExtendedPartialViewContextImpl.visitActivatorComponent(ExtendedPartialViewContextImpl.java:440)
          at org.richfaces.context.ExtendedPartialViewContextImpl.visitActivatorAtExecute(ExtendedPartialViewContextImpl.java:310)
          at org.richfaces.context.ExtendedPartialViewContextImpl.getExecuteIds(ExtendedPartialViewContextImpl.java:98)
          at org.richfaces.context.ExtendedPartialViewContextImpl.isExecuteAll(ExtendedPartialViewContextImpl.java:148)
          at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:929)
          at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
          at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
          at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
          at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
          at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:643)
          at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:450)
          at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131)
          at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524)
          at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
          at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1067)
          at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:377)
          at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)
          at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1001)
          at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129)
          at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250)
          at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149)
          at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:111)
          at org.eclipse.jetty.server.Server.handle(Server.java:360)
          at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:454)
          at org.eclipse.jetty.server.AbstractHttpConnection.content(AbstractHttpConnection.java:900)
          at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.content(AbstractHttpConnection.java:954)
          at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:851)
          at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
          at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:77)
          at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:622)
          at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:46)
          at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:603)
          at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:538)
          at java.lang.Thread.run(Thread.java:722)
      

       

      Here is the java code:

       

      public class ManageJourneyEditorBean {
          private List<Attribute> sourceAttr;
      
          private List<Attribute> targetAttr;
      
          private List<Integer> selectionSourceAttr;
      
          private List<Attribute> selectedSourceAttr;
      
          private List<Integer> selectionTargetAttr;
      
          private List<Attribute> selectedTargetAttr;
      
          
      public void sourceSelection() {
              selectedSourceAttr.clear();
              for (Integer posElem : selectionSourceAttr) {
                  selectedSourceAttr.add(sourceAttr.get(posElem));
              }
          }
      
          public void targetSelection() {
              selectedTargetAttr.clear();
              for (Integer posElem : selectionTargetAttr) {
                  selectedTargetAttr.add(targetAttr.get(posElem));
              }
          }
      
          public void all2Target() {
              targetAttr.addAll(sourceAttr);
              sourceAttr.clear();
          }
      
          public void selection2Target() {
              List<Attribute> toRemoveFromSource = new ArrayList<Attribute>();
              for (Integer item : selectionSourceAttr) {
                  Attribute a = sourceAttr.get(item);
                  targetAttr.add(a);
              }
              sourceAttr.removeAll(toRemoveFromSource);
              selectionSourceAttr.clear();
          }
      
          public void all2Source() {
              sourceAttr.addAll(targetAttr);
              targetAttr.clear();
          }
      
          public void selection2Source() {
              sourceAttr.addAll(selectedTargetAttr);
              targetAttr.removeAll(selectedTargetAttr);
              selectedTargetAttr.clear();
          }
      
      /*
      * All the setters and getters
      */
      

       

      Thank your for listening,

      Felix