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Java > Open Source Codes > org > xquark > mapper > storage > StructSaver


1 /*
2  * This file belongs to the XQuark distribution.
3  * Copyright (C) 2003 Universite de Versailles Saint-Quentin.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307.
18  * You can also get it at http://www.gnu.org/licenses/lgpl.html
19  *
20  * For more information on this software, see http://www.xquark.org.
21  */
22
23 package org.xquark.mapper.storage;
24
25 import java.sql.PreparedStatement JavaDoc;
26 import java.sql.SQLException JavaDoc;
27
28 import org.xquark.mapper.dbms.AbstractConnection;
29 import org.xquark.mapper.dbms.TableInfo;
30 import org.xquark.mapper.metadata.Node;
31 import org.xquark.mapper.metadata.UOIDManager;
32
33 /**
34  * Object used to perform XML structure node storage.
35  *
36  */
37 public class StructSaver extends StructPersistentNode
38 {
39     private static final String JavaDoc RCSRevision = "$Revision: 1.1 $";
40     private static final String JavaDoc RCSName = "$Name: $";
41     
42     public StructSaver(TableInfo tableInfo, UOIDManager manager)
43     {
44         super(tableInfo, manager);
45         initStatements();
46     }
47     
48     protected void initStatements()
49     {
50         insertStmt = "INSERT INTO " + tableInfo.getName() + " VALUES(?, ?, ?, ?)";
51     }
52     
53     public PreparedStatement JavaDoc getStatement(AbstractConnection connection)
54     throws SQLException JavaDoc
55     {
56         // preparation of PreparedStatement for insertion
57 if (pStmt == null)
58             pStmt = connection.getConnection().prepareStatement(insertStmt);
59         return pStmt;
60     }
61
62     public PreparedStatement JavaDoc setParameters(Node node)
63     throws SQLException JavaDoc
64     {
65         // add row to batch
66 try
67         {
68             pStmt.setLong(1, manager.buildUDID(docOID));
69             pStmt.setLong(2, manager.buildUOID(docOID, node.oid));
70             pStmt.setLong(3, manager.buildUOID(docOID, node.last));
71             pStmt.setShort(4, node.path);
72         }
73         catch (SQLException JavaDoc e)
74         {
75             pStmt.close();
76             pStmt = null;
77             throw e;
78         }
79         return pStmt;
80     }
81 }
82
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