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Java > Open Source Codes > org > myoodb > core > AbstractStorage


1 ///////////////////////////////////////////////////////////////////////////////
2 //
3 // Copyright (C) 2003-@year@ by Thomas M. Hazel, MyOODB (www.myoodb.org)
4 //
5 // All Rights Reserved
6 //
7 // This program is free software; you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License and GNU Library
9 // General Public License as published by the Free Software Foundation;
10 // either version 2, or (at your option) any later version.
11 //
12 // This program is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License and GNU Library General Public License
16 // for more details.
17 //
18 // You should have received a copy of the GNU General Public License
19 // and GNU Library General Public License along with this program; if
20 // not, write to the Free Software Foundation, 675 Mass Ave, Cambridge,
21 // MA 02139, USA.
22 //
23 ///////////////////////////////////////////////////////////////////////////////
24 package org.myoodb.core;
25
26 import java.io.*;
27 import java.util.*;
28
29 import org.myoodb.exception.*;
30
31 public abstract interface AbstractStorage
32 {
33     public void startup() throws Exception JavaDoc;
34
35     public void shutdown() throws Exception JavaDoc;
36
37     public boolean isVerifyingDatabase();
38
39     public boolean isDefraggingDatabase();
40
41     public boolean isBackingUpDatabase();
42
43     public boolean isRestoringDatabase();
44
45     public boolean performingDatabaseMaintenance();
46
47     public void verifyDatabase() throws Exception JavaDoc;
48
49     public void defragDatabase() throws Exception JavaDoc;
50
51     public void backupDatabase(String JavaDoc location) throws Exception JavaDoc;
52
53     public void restoreDatabase(String JavaDoc location) throws Exception JavaDoc;
54
55     public LinkedList getContainerIdentifiers() throws Exception JavaDoc;
56
57     public HashMap getDefraggedContainerIdentifierMap();
58
59     public AbstractObjectContainer createContainer(AbstractTransaction tx, Identifier id, String JavaDoc rootName, int accessLevel) throws IOException, ClassNotFoundException JavaDoc, TransactionException;
60
61     public AbstractObjectContainer getContainer(AbstractTransaction tx, Identifier id, String JavaDoc rootName) throws IOException, ClassNotFoundException JavaDoc, ObjectNotFoundException;
62
63     public AbstractTransaction createTransaction(User user);
64
65     public void setAssociatedTransaction(AbstractTransaction tx, AbstractObjectContainer container) throws IOException;
66
67     public void prepareTransaction(AbstractTransaction tx) throws IOException, ClassNotFoundException JavaDoc;
68
69     public void commitTransaction(AbstractTransaction tx) throws IOException, ClassNotFoundException JavaDoc;
70
71     public void abortTransaction(AbstractTransaction tx) throws IOException, ClassNotFoundException JavaDoc;
72
73     public void emptyMemoryCache();
74 }
75
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