public void handleBtnFilterRequest(RequestInvocationEvent event){
  CCDropDownMenu menu=(CCDropDownMenu)getChild(FILTER_TYPE);
  setPageSessionAttribute(ENTITY_TYPE,(String)menu.getValue());
  super.handleBtnFilterRequest(event);
}

public void handleBtnFilterRequest ( RequestInvocationEvent event ) { CCDropDownMenu menu = ( CCDropDownMenu ) getChild ( FILTER_TYPE ) ; setPageSessionAttribute ( ENTITY_TYPE , ( String ) menu . getValue ( ) ) ; super . handleBtnFilterRequest ( event ) ; }
handles filter results request .
