if (rs.row[numCol]==null)
final byte[] bytes = rs.row[numCol];  if (bytes == null)
    Blob getBlob() throws SQLException {                if (blob != null)            return blob;            if (rs.row[numCol]==null)            return BLOB_NULL_VALUE;        Long blobId = new Long(field.decodeLong(rs.row[numCol]));        blob = new FBBlob(c, blobId.longValue());                return blob;    }