void function ( ) { }
notification sent before starting the search action . typically , this would tell a search requestor to clear previously recorded search results . the default implementation of this method does nothing . subclasses may override . concode_field_sep PlaceHolder placeHolder concode_field_sep void enterParticipant concode_elem_sep void acceptSearchMatch concode_elem_sep void endReporting concode_elem_sep void exitParticipant