BackendObjectConverter


1   /**
2    * Sequoia: Database clustering technology.
3    * Copyright (C) 2005 AmicoSoft, Inc. dba Emic Networks
4    * Contact: sequoia@continuent.org
5    * 
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    * 
10   * http://www.apache.org/licenses/LICENSE-2.0
11   * 
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License. 
17   *
18   * Initial developer(s): Emmanuel Cecchet.
19   * Contributor(s): ______________________.
20   */
21  
22  package org.continuent.sequoia.controller.backend;
23  
24  import java.sql.ResultSet  ;
25  import java.sql.SQLException  ;
26  
27  import org.continuent.sequoia.common.protocol.Field;
28  
29  /**
30   * This class defines a BackendObjectConverter
31   * 
32   * @author <a HREF="mailto:emmanuel.cecchet@emicnetworks.com">Emmanuel Cecchet</a>
33   * @version 1.0
34   */
35  public interface BackendObjectConverter
36  {
37    /**
38     * Return object number i of the current ResultSet row and convert it as
39     * needed by the backend specific implementation.
40     * 
41     * @param dbResultSet the database backend ResultSet
42     * @param i the ResultSet column number (starting at 1, SQL counting style)
43     * @param f column metadata
44     * @return the converted object
45     * @throws SQLException if an error occurs
46     */
47    Object   convertResultSetObject(ResultSet   dbResultSet, int i, Field f)
48        throws SQLException  ;
49  
50  }
51

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