1 /*
2 * Copyright 2004 Charles Blaxland
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package mnemosyne.system;
17
18 import mnemosyne.core.TransactionAbortedException;
19
20
21 /***
22 * @version $Id: PersistentSystem.java,v 1.2 2004/08/12 14:01:06 charlesblaxland Exp $
23 */
24 public interface PersistentSystem
25 {
26 public void advanceVersion();
27 public Object getPersistentRoot(String rootName);
28 public void setPersistentRoot(String rootName, Object value);
29 public void removePersistentRoot(String rootName);
30 public void beginTransaction();
31 public void endTransaction() throws TransactionAbortedException;
32 }