check if a given occurence is the same as this one used to store occurence in collections . concode_field_sep int sequenceID concode_elem_sep List<Short> occurences concode_field_sep void add concode_elem_sep short getFirst concode_elem_sep int hashCode concode_elem_sep short getLast
boolean function ( Object arg0 ) { return ( ( Occurence ) arg0 ) . sequenceID == sequenceID ; }