The Java SqlTuple Class

 
    public  class SqlTuple
    {
        /**
        * Get number of components in tuple
        * @return number of components
        */
        public int size() 
        {
            return size(id);
        }
 
        /**
        * Get value of the result column with specified index
        * @param i column index (0-based)
        * @return column's value
        */
        public Object get(int i) 
        {
            return get(id, i);
        }
 
        /**
        * Get integer value of the column with specified index
        * @param i column index (0-based)
        * @return column's value
        */
        public long getInt(int i) 
        {
            return getInt(id, i);
        }
 
        /**
        * Get floating point value of the column with specified index
        * @param i column index (0-based)
        * @return column's value
        */
        public double getReal(int i) 
        {
            return getReal(id, i);
        }
 
        /**
        * Get value of the column with specified column name
        * @param column column name
        * @return column's value
        */
        public Object get(String column) 
        {
            return get(rs.getColumnNo(column));
        }
 
        /**
        * Get integer value of the column with specified column name
        * @param column column name
        * @return column's value
        */
        public long getInt(String column) 
        {
            return getInt(rs.getColumnNo(column));
        }
 
        /**
        * Get floating point value of the column with specified column name
        * @param column column name
        * @return column's value
        */
        public double getReal(String column) 
        {
            return getReal(rs.getColumnNo(column));
        }
     
        SqlTuple(SqlResultSet resultSet, long record) 
        {
            rs = resultSet;
            id = record;
        }
 
        private long id;
        private SqlResultSet rs;
        private native int size(long id);
        private native Object get(long id, int i);
        private native long getInt(long id, int i);
        private native double getReal(long id, int i);
    };