ResultReader


1   /*
2    * Copyright 2002-2005 the original author or authors.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.springframework.jdbc.core;
18  
19  import java.util.List  ;
20  
21  /**
22   * Extension of RowCallbackHandler interface that saves the accumulated results
23   * as a List.
24   *
25   * <p>Allows to make a results list available in a uniform manner. JdbcTemplate's
26   * query methods will return the results list in that case, else returning null
27   * (-> result state is solely available from RowCallbackHandler object).
28   *
29   * <p>A convenient out-of-the-box implementation of ResultReader is the
30   * RowMapperResultReader adapter which delegates row mapping to a RowMapper.
31   * Note that a RowMapper object is typically stateless and thus reusable;
32   * just the RowMapperResultReader adapter is stateful.
33   *
34   * @author Rod Johnson
35   * @see RowMapperResultReader
36   */
37  public interface ResultReader extends RowCallbackHandler {
38       
39      /**
40       * Return all results, disconnected from the JDBC ResultSet.
41       * Never returns null; returns the empty collection if there
42       * were no results.
43       */
44      List   getResults();
45  
46  }
47

A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame

Popular Tags