walks up the reader tree and return the given context 's top level reader context , or in other words the reader tree 's root context . concode_field_sep PlaceHolder placeHolder concode_field_sep int subIndex concode_elem_sep int subIndex
IndexReaderContext function ( IndexReaderContext arg0 ) { while ( arg0 . parent != null ) { arg0 = arg0 . parent ; } return arg0 ; }