Hierarchy получить id выбранного элемента в бине

<dvt:hierarchyViewer id="hv1" var="node" value="#{bindings.SupsParent_Her1.treeModel}"

    ****

            <af:link id="link_hierarchi_01"
                    action="#{pageFlowScope.myClass.myMethod(node.AttributeName)}">
                <af:outputText value="#{node.AttributeName}"truncateAt="30"/>
            </af:link>

private transient RichPopup myPopup;

public String myMethod(Object attribute) {
  System.out.println("attribute = " + attribute);


  // В данном конкретном случае логика

  AdfFacesContext.getCurrentInstance().getPageFlowScope().put("p_supplier", p_sups);
  RichPopup.PopupHints hints = new RichPopup.PopupHints();
  hints.add(RichPopup.PopupHints.HintTypes.HINT_LAUNCH_ID, this.myPopup);
  this.p2.show(hints);
  return null;
}