01: /*
02: * Enhydra Java Application Server Project
03: *
04: * The contents of this file are subject to the Enhydra Public License
05: * Version 1.1 (the "License"); you may not use this file except in
06: * compliance with the License. You may obtain a copy of the License on
07: * the Enhydra web site ( http://www.enhydra.org/ ).
08: *
09: * Software distributed under the License is distributed on an "AS IS"
10: * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
11: * the License for the specific terms governing rights and limitations
12: * under the License.
13: *
14: * The Initial Developer of the Enhydra Application Server is Lutris
15: * Technologies, Inc. The Enhydra Application Server and portions created
16: * by Lutris Technologies, Inc. are Copyright Lutris Technologies, Inc.
17: * All Rights Reserved.
18: *
19: * Contributor(s):
20: *
21: * $Id: Query.java,v 1.1 2007-01-24 16:59:09 sinisa Exp $
22: */
23: package com.lutris.appserver.server.sql;
24:
25: import java.sql.ResultSet;
26: import java.sql.SQLException;
27:
28: /**
29: * Interface that must be implemented by objects accessed by DBQuery.
30: *
31: * @author Kyle Clark
32: * @version $Revision: 1.1 $
33: * @see DBQuery
34: */
35: public interface Query {
36:
37: /**
38: * Method to query objects from the database.
39: *
40: * @param conn Handle to database connection.
41: * @exception java.sql.SQLException If a database access error occurs.
42: */
43: public ResultSet executeQuery(DBConnection conn)
44: throws SQLException;
45:
46: /**
47: * Method to get next object from query results.
48: *
49: * @param rs JDBC result set from which the next object
50: * will be instantiated.
51: * @exception java.sql.SQLException If a database access error occurs.
52: * @exception ObjectIdException If ObjectId was not found.
53: */
54: public Object next(ResultSet rs) throws SQLException,
55: ObjectIdException;
56: }
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