CallableStatementCreator


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.sql.CallableStatement  ;
20  import java.sql.Connection  ;
21  import java.sql.SQLException  ;
22  
23  /**
24   * One of the three central callback interfaces used by the JdbcTemplate class.
25   * This interface creates a CallableStatement given a connection, provided
26   * by the JdbcTemplate class. Implementations are responsible for providing
27   * SQL and any necessary parameters.
28   *
29   * <p>Implementations <i>do not</i> need to concern themselves with
30   * SQLExceptions that may be thrown from operations they attempt.
31   * The JdbcTemplate class will catch and handle SQLExceptions appropriately.
32   *
33   * <p>A PreparedStatementCreator should also implement the SqlProvider interface
34   * if it is able to provide the SQL it uses for PreparedStatement creation.
35   * This allows for better contextual information in case of exceptions.
36   *
37   * @author Rod Johnson
38   * @author Thomas Risberg
39   * @see JdbcTemplate#execute(CallableStatementCreator, CallableStatementCallback)
40   * @see JdbcTemplate#call
41   * @see SqlProvider
42   */
43  public interface CallableStatementCreator {
44  
45      /** 
46       * Create a callable statement in this connection. Allows implementations to use
47       * CallableStatements. 
48       * @param con Connection to use to create statement
49       * @return a callable statement
50       * @throws SQLException there is no need to catch SQLExceptions
51       * that may be thrown in the implementation of this method.
52       * The JdbcTemplate class will handle them.
53       */
54      CallableStatement   createCallableStatement(Connection   con) throws SQLException  ;
55  
56  }
57
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