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Java > Open Source Codes > org > apache > ojb > broker > accesslayer > sql > SelectStatement


1 package org.apache.ojb.broker.accesslayer.sql;
2
3 /* Copyright 2002-2005 The Apache Software Foundation
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17
18 import org.apache.ojb.broker.metadata.FieldDescriptor;
19 import org.apache.ojb.broker.query.Query;
20
21 /**
22  * This class
23  *
24  * @author <a HREF="mailto:arminw@apache.org">Armin Waibel</a>
25  * @version $Id: SelectStatement.java,v 1.1.2.2 2005/12/21 22:23:43 tomdz Exp $
26  */
27 public interface SelectStatement extends SqlStatement
28 {
29     /**
30      * Returns the {@link org.apache.ojb.broker.query.Query} instance
31      * this statement based on.
32      * @return The {@link org.apache.ojb.broker.query.Query} instance or <em>null</em>
33      * if no query is used to generate the select string.
34      */
35     public Query getQueryInstance();
36
37     /**
38      * Returns the column index of the specified {@link org.apache.ojb.broker.metadata.FieldDescriptor}
39      * in the {@link java.sql.ResultSet} after performing the query.
40      *
41      * @param fld The {@link org.apache.ojb.broker.metadata.FieldDescriptor}.
42      * @return The column index or {@link org.apache.ojb.broker.metadata.JdbcType#MIN_INT} if
43      * column index is not supported.
44      */
45     public int getColumnIndex(FieldDescriptor fld);
46 }
47
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