Пример #1
0
 private static void close(Connection connection, Statement statement, ResultSet resultSet) {
   if (resultSet != null) {
     try {
       resultSet.close();
     } catch (SQLException e) {
       // ignore
     }
   }
   if (statement != null) {
     try {
       statement.close();
     } catch (SQLException e) {
       // ignore
     }
   }
   if (connection != null) {
     try {
       connection.close();
     } catch (SQLException e) {
       // ignore
     }
   }
 }
Пример #2
0
  RelProtoDataType getRelDataType(
      DatabaseMetaData metaData, String catalogName, String schemaName, String tableName)
      throws SQLException {
    final ResultSet resultSet = metaData.getColumns(catalogName, schemaName, tableName, null);

    // Temporary type factory, just for the duration of this method. Allowable
    // because we're creating a proto-type, not a type; before being used, the
    // proto-type will be copied into a real type factory.
    final RelDataTypeFactory typeFactory = new SqlTypeFactoryImpl();
    final RelDataTypeFactory.FieldInfoBuilder fieldInfo = typeFactory.builder();
    while (resultSet.next()) {
      final String columnName = resultSet.getString(4);
      final int dataType = resultSet.getInt(5);
      final String typeString = resultSet.getString(6);
      final int size = resultSet.getInt(7);
      final int scale = resultSet.getInt(9);
      RelDataType sqlType = sqlType(typeFactory, dataType, size, scale, typeString);
      boolean nullable = resultSet.getBoolean(11);
      fieldInfo.add(columnName, sqlType).nullable(nullable);
    }
    resultSet.close();
    return RelDataTypeImpl.proto(fieldInfo.build());
  }