2 * Copyright © 2010 Mike Beattie <mike@ethernal.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
18 package org.altusmetrum.altoslib_11;
24 public abstract class AltosPreferencesBackend {
26 public abstract String getString(String key, String def);
27 public abstract void putString(String key, String value);
29 public abstract int getInt(String key, int def);
30 public abstract void putInt(String key, int value);
32 public abstract double getDouble(String key, double def);
33 public abstract void putDouble(String key, double value);
35 public abstract boolean getBoolean(String key, boolean def);
36 public abstract void putBoolean(String key, boolean value);
38 public abstract byte[] getBytes(String key, byte[] def);
39 public abstract void putBytes(String key, byte[] value);
41 public AltosHashSet getHashSet(String key) {
42 String value = getString(key, null);
46 return AltosHashSet.fromString(value);
49 public void putHashSet(String key, AltosHashSet h) {
50 putString(key, h.toString());
53 public abstract boolean nodeExists(String key);
54 public abstract AltosPreferencesBackend node(String key);
56 public abstract String[] keys();
57 public abstract void remove(String key);
59 public abstract void flush();
61 public abstract File homeDirectory();
63 public abstract void debug(String format, Object ... arguments);