Ibatis之3个不常用的Query方法

  /**
   * Executes a mapped SQL SELECT statement that returns data to populate
   * the supplied result object.
   * <p/>
   * The parameter object is generally used to supply the input
   * data for the WHERE clause parameter(s) of the SELECT statement.
   *
   * @param id              The name of the statement to execute.
   * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
   * @param resultObject    The result object instance that should be populated with result data.
   * @return The single result object as supplied by the resultObject parameter, populated with the result set data,
   *         or null if no result was found
   * @throws java.sql.SQLException If more than one result was found, or if any other error occurs.
   */
  Object queryForObject(String id, Object parameterObject, Object resultObject) throws SQLException;

  /**
   * Executes a mapped SQL SELECT statement that returns data to populate
   * a number of result objects within a certain range.
   * <p/>
   * This overload assumes no parameter is needed.
   *
   * @param id              The name of the statement to execute.
   * @param skip            The number of results to ignore.
   * @param max             The maximum number of results to return.
   * @return A List of result objects.
   * @throws java.sql.SQLException If an error occurs.
   */
  List queryForList(String id, int skip, int max) throws SQLException;

/**
   * Executes a mapped SQL SELECT statement that returns data to populate
   * a number of result objects that will be keyed into a Map.
   * <p/>
   * The parameter object is generally used to supply the input
   * data for the WHERE clause parameter(s) of the SELECT statement.
   *
   * @param id              The name of the statement to execute.
   * @param parameterObject The parameter object (e.g. JavaBean, Map, XML etc.).
   * @param keyProp         The property to be used as the key in the Map.
   * @return A Map keyed by keyProp with values being the result object instance.
   * @throws java.sql.SQLException If an error occurs.
   */
  Map queryForMap(String id, Object parameterObject, String keyProp) throws SQLException;