question: return when the site is touched first concode_field_sep Operation _pendingOp concode_elem_sep List<String> _dirtyVIds concode_elem_sep Map<Integer,Integer> _touchSiteTime concode_elem_sep int _startTimestamp concode_elem_sep String _tid concode_elem_sep boolean _readOnly concode_field_sep void addTouchedSite concode_elem_sep void addOperation
target: int function ( int arg0 ) { if ( ! _touchSiteTime . containsKey ( arg0 ) ) { return - 1 ; } return _touchSiteTime . get ( arg0 ) ; }