I have a datatable with a column that contains an up arrow and another column that has a down arrow. These allow you to move the row up and down. However, when I click on them, the moveUp method in the bean is triggered and the order is updated, but I don't see this in my browser. When I trigger it again, I can tell (with printlns) that the order is reset to what was originally retrieved from the database.

Below is an extract of my JSP and bean. Please help

<h:panelGrid id="pgPage" columns="1" width="100%">

     <rich:dataTable binding="#{MyBean.staffTable}" value="#{MyBean.staffList}" var="staff"

                                                    rowClasses="row1, row2" id="staffTable" rows="20"

                                                    columnClasses="50,100,100,100"

                                                    onRowMouseOver="this.style.backgroundColor='#B5F3FB'"

                                                    onRowMouseOut="this.style.backgroundColor='#{a4jSkin.rowBackgroundColor}'"

                                                    style="width:770px;align:center;">

                                                    <f:facet name="header">

                                                        <rich:columnGroup>

                                                            <rich:column width="27%">

                                                                <h:outputText value="Name" />

                                                            </rich:column>

                                              <rich:column width="10">

                                                                <h:outputText value="Up" />

                                                            </rich:column>

                                                  </f:facet>

                                                  <rich:column>

                                                        <h:outputText value="#{staff.staffname}" />

                                                    </rich:column>

                                             <rich:column>

                                                       <a4j:commandLink reRender="pgPage" actionListener="#{MyBean.moveUp}">

                                                            <h:graphicImage url="/images/move_up.png" style="border:0;width:15px;height:15px;"/>

                                                        </a4j:commandLink>

                                        </rich:column>

                              </rich:dataTable>

</h:panelGrid>

public class MyBean extends AbstractPageBean {

     private org.richfaces.component.html.HtmlDataTable staffTable = new org.richfaces.component.html.HtmlDataTable();

    public org.richfaces.component.html.HtmlDataTable getStaffTable() {

        return staffTable;

    }

    public void setStaffTable(org.richfaces.component.html.HtmlDataTable hot) {

        this.staffTable = hot;

    }

     public void moveUp(ActionEvent e) throws Exception {

        try {

            int selectedIndex = staffTable.getRowIndex();

            WWWWebsiteStaff selectedStaff = (WWWWebsiteStaff) staffTable.getRowData();

            if (selectedIndex == 0) {

                //do nothing

            } else {

                staffList.remove(selectedIndex);

                staffList.add(selectedIndex - 1, selectedStaff);

            }

        } catch (Exception ex) {

            ex.printStackTrace();

        }

        staffList = getStaffList();

    }

}