1 Reply Latest reply on Jun 16, 2008 2:37 PM by Syed Muhammad Ali Naqvi

    Problem with EVENT Scope

    Syed Muhammad Ali Naqvi Newbie

      Hello every one I am having a problem with Event scope of my class.
      Below is my class.


      package com.pcounts.server.action.sp;
      
      import java.util.List;
      import java.util.Set;
      import java.util.Vector;
      
      import javax.ejb.Remove;
      import javax.ejb.Stateful;
      import javax.ejb.Stateless;
      import javax.faces.component.UIData;
      import javax.interceptor.Interceptors;
      
      import org.hibernate.type.TrueFalseType;
      import org.jboss.seam.annotations.Begin;
      import org.jboss.seam.annotations.Destroy;
      import org.jboss.seam.annotations.End;
      import org.jboss.seam.annotations.Factory;
      import org.jboss.seam.annotations.FlushModeType;
      import org.jboss.seam.annotations.In;
      import org.jboss.seam.annotations.Name;
      import org.jboss.seam.annotations.Out;
      import org.jboss.seam.annotations.Scope;
      import org.jboss.seam.ScopeType;
      import org.jboss.seam.annotations.datamodel.DataModel;
      import org.richfaces.component.UIDatascroller;
      
      import com.pcounts.server.action.auth.PCUserSession;
      import com.pcounts.server.hibernate.pojo.Contacts;
      import com.pcounts.server.hibernate.service.ContactService;
      import com.pcounts.server.hibernate.service.GroupService;
      import com.pcounts.server.hibernate.service.UserService;
      
      @Name("spContactsAction")
      @Scope(ScopeType.EVENT)
      public class SPContactsActionBean {
      
           @DataModel
           private List<Contacts> listContacts = null;
      
           @In(create = true)
           ContactService contactService;
           @In(create = true)
           GroupService groupService;
           @In(create = true)
           PCUserSession pcUserSession;
           @In(create = true)
           UserService userService;
      
           UIData dataTable;
           UIDatascroller dataScroller;
      
      
      
           @SuppressWarnings("unchecked")
           @Factory(value = "listContacts")
           public void listContacts() {
      
                System.out.println("dataScroller.getPage(): " + dataScroller.getPage());
                
                System.out.println("public void listContacts() called ....");
                List listSubSetRecords;
                List lstGroups;
                Set setSPsOfGroups;
                int pageFirstIndex;
                Long count;
      
                lstGroups = groupService.getGroupsForSP(pcUserSession.getUserNumber());
      
                setSPsOfGroups = userService.getSPsFromSalesGroups(lstGroups);
      
                count = contactService.getContactsRowCount(userService
                          .getCSVUserNumber(setSPsOfGroups));
      
                System.out.println("Count Value " + count);
      
                java.util.Vector vector = new Vector();
      
                vector.setSize(count.intValue());
      
                System.out.println("Vector.size()" + vector.size());
      
                pageFirstIndex = (dataScroller.getPage() * dataScroller.getDataTable()
                          .getRows())
                          - dataScroller.getDataTable().getRows();
      
                listContacts = contactService.getContacts(userService
                          .getCSVUserNumber(setSPsOfGroups), null, false, pageFirstIndex);
      
                System.out.println("listContacts.size() " + listContacts.size());
      
                for (int index = 0; index < listContacts.size(); index++) {
                     vector.set(pageFirstIndex + index, listContacts.get(index));
                }
      
                for (int i = 0; i < vector.size(); i++) {
                     System.out.println("Vector index " + i + " ) " + vector.get(i));
                }
      
                listContacts = vector;
      
           }
           
           public List<Contacts> getListContacts() {
                return listContacts;
           }
      
           public void setListContacts(List<Contacts> listContacts) {
                this.listContacts = listContacts;
           }
      
           public UIDatascroller getDataScroller() {
                return dataScroller;
           }
           
           public void setDataScroller(UIDatascroller dataScroller) {
                this.dataScroller = dataScroller;
           }
           
           @Remove
           @Destroy
           public void destroy(){
                
           }
      }
      



      And this is contactDetail.xhtml


      <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
                                   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      <ui:composition xmlns="http://www.w3.org/1999/xhtml"
           xmlns:s="http://jboss.com/products/seam/taglib"
           xmlns:ui="http://java.sun.com/jsf/facelets"
           xmlns:f="http://java.sun.com/jsf/core"
           xmlns:h="http://java.sun.com/jsf/html"
           xmlns:rich="http://richfaces.org/rich"
           xmlns:a="http://richfaces.org/a4j" template="layout/sp-template.xhtml">
      
           <ui:define name="body">
                <table width="98%" cellpadding="0" align="center" cellspacing="0">
                     <tr>
                          <td align="left">
                          <table width="152px" align="left" cellpadding="0" cellspacing="0">
                               <tr>
                                    <td class="tabLOnEnd"></td>
                                    <td class="tabTxtOnEnd">My Contacts</td>
                                    <td class="tabNone"></td>
                               </tr>
                          </table>
                          </td>
                     </tr>
                     <tr>
                          <td colspan="4" width="100%">
                          <div class="tab-box" style="margin-left:0">
                          <div class="buttons" style="margin-top:97px; margin-right:9px"><h:commandLink>
                               <h:graphicImage value="../common/image/btn-addnew.gif" />
                          </h:commandLink></div>
                          <rich:dataTable id="sp-contacts"
                               value="#{listContacts}" cellpadding="0" cellspacing="0"
                               var="contacts" headerClass="tableHeader" rows="15"
                               columnClasses="tableRows" width="100%" columnsWidth="0*">
      
                               <rich:column>
                                    <f:facet name="header">
                                         <h:outputText value="Edit" />
                                    </f:facet>
                                    <a:commandLink action="#{SalesPersonContacts.editAction}">
                                         <h:graphicImage value="../common/image/icon-edit.gif"></h:graphicImage>
                                    </a:commandLink>
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink
                                              action="#{SalesPersonContacts.sortAction('lastName')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="Last Name">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.lastName}" />
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink
                                              action="#{SalesPersonContacts.sortAction('firstName')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="First Name">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.firstName}" />
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink
                                              action="#{SalesPersonContacts.sortAction('phone1')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="Phone">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.phone1}" />
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink
                                              action="#{SalesPersonContacts.sortAction('email')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="Email">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.email}" />
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink
                                              action="#{SalesPersonContacts.sortAction('address')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="Street">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.address}" />
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink action="#{SalesPersonContacts.sortAction('city')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="City">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.city}" />
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink
                                              action="#{SalesPersonContacts.sortAction('state')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="State">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.state}" />
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink action="#{SalesPersonContacts.sortAction('zip')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="Zip">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.zip}" />
                               </rich:column>
      
                               <rich:column>
                                    <f:facet name="header">
                                         <a:commandLink
                                              action="#{SalesPersonContacts.sortAction('users.firstName')}"
                                              reRender="contactsScroller,sp-contacts"
                                              style="text-decoration: none;" value="Assignment">
                                              <h:graphicImage value="../common/image/icon-edit.gif"
                                                   style="text-decoration: none;"></h:graphicImage>
                                         </a:commandLink>
                                    </f:facet>
                                    <h:outputText value="#{contacts.users.firstName} #{contacts.users.lastName}" />
                               </rich:column>
                          </rich:dataTable>
                          </div></td>
                     </tr>
                     <tr>
                          <td align="center" width="100%">
                          <div class="tab-box-footer"><rich:datascroller
                               id="contactsScroller" align="center"
                               selectedStyleClass="activeLinksScroller"
                               tableStyleClass="tablefooter"
                               inactiveStyleClass="inActiveLinksScroller" for="sp-contacts"
                               maxPages="15" style="tablefooter" boundaryControls="hide"
                               fastControls="hide" renderIfSinglePage="false" binding="#{spContactsAction.dataScroller}">
                               <f:facet name="previous">
                                    <h:graphicImage value="../common/image/arrow-left.gif" height="14"></h:graphicImage>
                               </f:facet>
                               <f:facet name="next">
                                    <h:graphicImage value="../common/image/arrow-right.gif"></h:graphicImage>
                               </f:facet>
                               <f:facet name="previous_disabled">
                                    <h:graphicImage value="../common/image/arrow-left.gif"></h:graphicImage>
                               </f:facet>
                               <f:facet name="next_disabled">
                                    <h:graphicImage value="../common/image/arrow-right.gif"></h:graphicImage>
                               </f:facet>
      
                          </rich:datascroller></div>
                          </td>
                     </tr>
                </table>
           </ui:define>
      </ui:composition>



      When I run the application factory method 'listContacts' run
      for the first time. But When I try to go to next page from the scroller. Again same data for factory method is loaded. And it shows me blank datatable. But when I come back to previous page from scroller the factory method loads the data for the page from which I have come to previous page. And current page is shown blank. And when I move to forward page again the data for previous page is loaded and this goes on.
      I hope that u get my question. Please reply as soon as possible.


      Bye
      Muhammad Ali




        • 1. Re: Problem with EVENT Scope
          Syed Muhammad Ali Naqvi Newbie

          Syed Muhammad Ali Naqvi wrote on Jun 16, 2008 14:09:


          Hello every one I am having a problem with Event scope of my class.
          Below is my class.

          package com.pcounts.server.action.sp;
          
          import java.util.List;
          import java.util.Set;
          import java.util.Vector;
          
          import javax.ejb.Remove;
          import javax.ejb.Stateful;
          import javax.ejb.Stateless;
          import javax.faces.component.UIData;
          import javax.interceptor.Interceptors;
          
          import org.hibernate.type.TrueFalseType;
          import org.jboss.seam.annotations.Begin;
          import org.jboss.seam.annotations.Destroy;
          import org.jboss.seam.annotations.End;
          import org.jboss.seam.annotations.Factory;
          import org.jboss.seam.annotations.FlushModeType;
          import org.jboss.seam.annotations.In;
          import org.jboss.seam.annotations.Name;
          import org.jboss.seam.annotations.Out;
          import org.jboss.seam.annotations.Scope;
          import org.jboss.seam.ScopeType;
          import org.jboss.seam.annotations.datamodel.DataModel;
          import org.richfaces.component.UIDatascroller;
          
          import com.pcounts.server.action.auth.PCUserSession;
          import com.pcounts.server.hibernate.pojo.Contacts;
          import com.pcounts.server.hibernate.service.ContactService;
          import com.pcounts.server.hibernate.service.GroupService;
          import com.pcounts.server.hibernate.service.UserService;
          
          @Name("spContactsAction")
          @Scope(ScopeType.EVENT)
          public class SPContactsActionBean {
          
                  @DataModel
                  private List<Contacts> listContacts = null;
          
                  @In(create = true)
                  ContactService contactService;
                  @In(create = true)
                  GroupService groupService;
                  @In(create = true)
                  PCUserSession pcUserSession;
                  @In(create = true)
                  UserService userService;
          
                  UIData dataTable;
                  UIDatascroller dataScroller;
          
          
          
                  @SuppressWarnings("unchecked")
                  @Factory(value = "listContacts")
                  public void listContacts() {
          
                          System.out.println("dataScroller.getPage(): " + dataScroller.getPage());
                          
                          System.out.println("public void listContacts() called ....");
                          List listSubSetRecords;
                          List lstGroups;
                          Set setSPsOfGroups;
                          int pageFirstIndex;
                          Long count;
          
                          lstGroups = groupService.getGroupsForSP(pcUserSession.getUserNumber());
          
                          setSPsOfGroups = userService.getSPsFromSalesGroups(lstGroups);
          
                          count = contactService.getContactsRowCount(userService
                                          .getCSVUserNumber(setSPsOfGroups));
          
                          System.out.println("Count Value " + count);
          
                          java.util.Vector vector = new Vector();
          
                          vector.setSize(count.intValue());
          
                          System.out.println("Vector.size()" + vector.size());
          
                          pageFirstIndex = (dataScroller.getPage() * dataScroller.getDataTable()
                                          .getRows())
                                          - dataScroller.getDataTable().getRows();
          
                          listContacts = contactService.getContacts(userService
                                          .getCSVUserNumber(setSPsOfGroups), null, false, pageFirstIndex);
          
                          System.out.println("listContacts.size() " + listContacts.size());
          
                          for (int index = 0; index < listContacts.size(); index++) {
                                  vector.set(pageFirstIndex + index, listContacts.get(index));
                          }
          
                          for (int i = 0; i < vector.size(); i++) {
                                  System.out.println("Vector index " + i + " ) " + vector.get(i));
                          }
          
                          listContacts = vector;
          
                  }
                  
                  public List<Contacts> getListContacts() {
                          return listContacts;
                  }
          
                  public void setListContacts(List<Contacts> listContacts) {
                          this.listContacts = listContacts;
                  }
          
                  public UIDatascroller getDataScroller() {
                          return dataScroller;
                  }
                  
                  public void setDataScroller(UIDatascroller dataScroller) {
                          this.dataScroller = dataScroller;
                  }
                  
                  @Remove
                  @Destroy
                  public void destroy(){
                          
                  }
          }
          



          And this is contactDetail.xhtml

          <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
                                       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
          <ui:composition xmlns="http://www.w3.org/1999/xhtml"
                  xmlns:s="http://jboss.com/products/seam/taglib"
                  xmlns:ui="http://java.sun.com/jsf/facelets"
                  xmlns:f="http://java.sun.com/jsf/core"
                  xmlns:h="http://java.sun.com/jsf/html"
                  xmlns:rich="http://richfaces.org/rich"
                  xmlns:a="http://richfaces.org/a4j" template="layout/sp-template.xhtml">
          
                  <ui:define name="body">
                          <table width="98%" cellpadding="0" align="center" cellspacing="0">
                                  <tr>
                                          <td align="left">
                                          <table width="152px" align="left" cellpadding="0" cellspacing="0">
                                                  <tr>
                                                          <td class="tabLOnEnd"></td>
                                                          <td class="tabTxtOnEnd">My Contacts</td>
                                                          <td class="tabNone"></td>
                                                  </tr>
                                          </table>
                                          </td>
                                  </tr>
                                  <tr>
                                          <td colspan="4" width="100%">
                                          <div class="tab-box" style="margin-left:0">
                                          <div class="buttons" style="margin-top:97px; margin-right:9px"><h:commandLink>
                                                  <h:graphicImage value="../common/image/btn-addnew.gif" />
                                          </h:commandLink></div>
                                          <rich:dataTable id="sp-contacts"
                                                  value="#{listContacts}" cellpadding="0" cellspacing="0"
                                                  var="contacts" headerClass="tableHeader" rows="15"
                                                  columnClasses="tableRows" width="100%" columnsWidth="0*">
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <h:outputText value="Edit" />
                                                          </f:facet>
                                                          <a:commandLink action="#{SalesPersonContacts.editAction}">
                                                                  <h:graphicImage value="../common/image/icon-edit.gif"></h:graphicImage>
                                                          </a:commandLink>
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink
                                                                          action="#{SalesPersonContacts.sortAction('lastName')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="Last Name">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.lastName}" />
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink
                                                                          action="#{SalesPersonContacts.sortAction('firstName')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="First Name">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.firstName}" />
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink
                                                                          action="#{SalesPersonContacts.sortAction('phone1')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="Phone">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.phone1}" />
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink
                                                                          action="#{SalesPersonContacts.sortAction('email')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="Email">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.email}" />
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink
                                                                          action="#{SalesPersonContacts.sortAction('address')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="Street">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.address}" />
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink action="#{SalesPersonContacts.sortAction('city')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="City">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.city}" />
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink
                                                                          action="#{SalesPersonContacts.sortAction('state')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="State">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.state}" />
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink action="#{SalesPersonContacts.sortAction('zip')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="Zip">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.zip}" />
                                                  </rich:column>
          
                                                  <rich:column>
                                                          <f:facet name="header">
                                                                  <a:commandLink
                                                                          action="#{SalesPersonContacts.sortAction('users.firstName')}"
                                                                          reRender="contactsScroller,sp-contacts"
                                                                          style="text-decoration: none;" value="Assignment">
                                                                          <h:graphicImage value="../common/image/icon-edit.gif"
                                                                                  style="text-decoration: none;"></h:graphicImage>
                                                                  </a:commandLink>
                                                          </f:facet>
                                                          <h:outputText value="#{contacts.users.firstName} #{contacts.users.lastName}" />
                                                  </rich:column>
                                          </rich:dataTable>
                                          </div></td>
                                  </tr>
                                  <tr>
                                          <td align="center" width="100%">
                                          <div class="tab-box-footer"><rich:datascroller
                                                  id="contactsScroller" align="center"
                                                  selectedStyleClass="activeLinksScroller"
                                                  tableStyleClass="tablefooter"
                                                  inactiveStyleClass="inActiveLinksScroller" for="sp-contacts"
                                                  maxPages="15" style="tablefooter" boundaryControls="hide"
                                                  fastControls="hide" renderIfSinglePage="false" binding="#{spContactsAction.dataScroller}">
                                                  <f:facet name="previous">
                                                          <h:graphicImage value="../common/image/arrow-left.gif" height="14"></h:graphicImage>
                                                  </f:facet>
                                                  <f:facet name="next">
                                                          <h:graphicImage value="../common/image/arrow-right.gif"></h:graphicImage>
                                                  </f:facet>
                                                  <f:facet name="previous_disabled">
                                                          <h:graphicImage value="../common/image/arrow-left.gif"></h:graphicImage>
                                                  </f:facet>
                                                  <f:facet name="next_disabled">
                                                          <h:graphicImage value="../common/image/arrow-right.gif"></h:graphicImage>
                                                  </f:facet>
          
                                          </rich:datascroller></div>
                                          </td>
                                  </tr>
                          </table>
                  </ui:define>
          </ui:composition>



          When I run the application factory method 'listContacts' run
          for the first time. But When I try to go to next page from the scroller. Again same data for factory method is loaded. And it shows me blank datatable. But when I come back to previous page from scroller the factory method loads the data for the page from which I have come to previous page. And current page is shown blank. And when I move to forward page again the data for previous page is loaded and this goes on.

          Before using EVENT scope I was using CONVERSATION scope. First time factory method listContacts() runs successfully. but after that when I move to next page using scroller I got the following error.


          javax.el.PropertyNotFoundException: /sp/sp-mycontacts.xhtml @169,96 binding="#{spContactsAction.dataScroller}": Target Unreachable, identifier 'spContactsAction' resolved to null




          I hope that u get my question. Please reply as soon as possible.

          Bye
          Muhammad Ali






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