public boolean hasConstraint (int tileIdx, String constraint)
    {
        return (_bits == null || _bits[tileIdx].constraints == null) ? false :
            ListUtil.contains(_bits[tileIdx].constraints, constraint);
    }
public boolean hasConstraint ( int tileIdx , String constraint ) { return ( _bits == null || _bits [ tileIdx ] . constraints == null ) ? false : ListUtil . contains ( _bits [ tileIdx ] . constraints , constraint ) ; }
Checks whether the tile at the specified index has the given constraint.