DataScroller with dataTable

Question

Hi
I have a dataScroller to display rows with a select component. The problem I am facing is the datascroller is not binding the selection. My backing bean has no binding for the select component as there could be hundreds of them. Could someone please suggest a way to resolve this?
Thanks
Murthy
Backing bean
package com.xxx.application.login.utils.helpers;
import java.util.*;
import javax.faces.context.FacesContext;
import com.xxx.application.login.utils.helpers.GroupPermissionsHelper;
public class GroupPermissionsBean {
     int noOfPermissions=0;
public GroupPermissionsBean() {
     System.out.println("In group permissions bean constructor");
public List getGroupsList() {
          System.out.println("in group permissions bean get options");
          List options=new ArrayList();
          Map m=  FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
          String pickOpts=(String)m.get("picklist");
          System.out.println(" picklist=" + pickOpts);
          if (pickOpts != null) {
               String [] opts_arr = pickOpts.split(",");
               for(int i=0; i < opts_arr.length; i++) {
                    opts_arr=opts_arr[i].trim();
                    if (opts_arr[i].equals("")) continue;
                    String pid="";
                    if (opts_arr[i].indexOf("(") > -1) {
                         pid=opts_arr[i].substring(0, opts_arr[i].indexOf("("));
                    GroupPermissionsHelper gph=new GroupPermissionsHelper(opts_arr[i], pid);
                    options.add(gph);
                    System.out.println("added option=" + opts_arr[i]);
          noOfPermissions=options.size();
          System.out.println("*********nof permissons=" + noOfPermissions);
          return options;
public int getNoOfPermissions() {
          return noOfPermissions;
public List getSomeList() {
     List options=new ArrayList();
     options.add("a");
     options.add("b");
     options.add("c");
     noOfPermissions=options.size();
     return options;
}//class
Data table component
<h:dataTable value="#{groupPermissionsBean.groupsList}" var="group" bgcolor="#D8EFE0" width="100%"   id="permissionsTable"
headerClass="dataTableHeader" rowClasses="dataTableRowWhite, dataTableRowAdbeda"
columnClasses="captionColumn, valueColumn" rows="2" >
        <h:column>
     <f:facet name="header">
     <h:outputText value="Groups"/>
     </f:facet>
                 <h:outputText value="#{group.partID} " style="font-family: Ariel, Helvetica, sans-serif;font-size: 9pt;"  />
       </h:column>
         <h:column>
     <f:facet name="header">
     <h:outputText value="Permissions"/>
     </f:facet>
                 <h:selectOneMenu id="permselect" title="Select any one in this menu"  >
     <f:selectItem itemLabel="SELECT" itemValue="" />
        <f:selectItem itemLabel="ADMIN" itemValue="ALL:#{group.fullID}" />
     <f:selectItem  itemLabel="VIEW" itemValue="VIEW:#{group.fullID}"  />
     <f:selectItem itemLabel="NONE" itemValue="NONE:#{group.fullID}" />
        </h:selectOneMenu>
          </h:column>
  </h:dataTable>
Scroller code
<t:dataScroller id="dataScroller"
                    for="permissionsTable"
                    pageCountVar="pageCount"
                    pageIndexVar="pageIndex"
                    styleClass="tblHeaders"
                    paginator="true"
                    paginatorMaxPages="10"
                    paginatorTableClass="tblContent"
                    paginatorActiveColumnStyle="font-weight:bold;"
                 rendered = "#{groupPermissionsBean.noOfPermissions > 2}"
               >
                      <f:facet name="previous">
                 <h:graphicImage url="#{bundle.PaginatorPrevImg}" rendered="#{pageIndex != 1}" style="border-color: transparent; border: 0;"   />
                 </f:facet>
                  <f:facet name="next">
                  <h:graphicImage url="#{bundle.PaginatorNextImg}" rendered="#{pageIndex < pageCount}" style="border-color: transparent; border: 0;"   />
                  </f:facet>
</t:dataScroller>

Answer 1

To add some info: The dataTable component generates rows with some text and a select component. I have a submit button that
calls an action method.
What's happening now is...the rows appear alright. But each set of rows takes a round trip to the Jboss server. As a result,
when the submit button is clicked, only the rows in the view are submitted.
Without the scroller, I'd have all the rows in one page and the validation is done with Javascript.
With the scroller in place, the rows are displayed correctly, the selection of the selection component is done right, but
only the rows in the current page are validated.
I'd appreciate your help
Thanks
Murthy