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1: /* MemoryBasedFactory - Memory based PreferencesFactory usefull for testing 2: Copyright (C) 2001 Free Software Foundation, Inc. 3: 4: This file is part of GNU Classpath. 5: 6: GNU Classpath is free software; you can redistribute it and/or modify 7: it under the terms of the GNU General Public License as published by 8: the Free Software Foundation; either version 2, or (at your option) 9: any later version. 10: 11: GNU Classpath is distributed in the hope that it will be useful, but 12: WITHOUT ANY WARRANTY; without even the implied warranty of 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14: General Public License for more details. 15: 16: You should have received a copy of the GNU General Public License 17: along with GNU Classpath; see the file COPYING. If not, write to the 18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19: 02110-1301 USA. 20: 21: Linking this library statically or dynamically with other modules is 22: making a combined work based on this library. Thus, the terms and 23: conditions of the GNU General Public License cover the whole 24: combination. 25: 26: As a special exception, the copyright holders of this library give you 27: permission to link this library with independent modules to produce an 28: executable, regardless of the license terms of these independent 29: modules, and to copy and distribute the resulting executable under 30: terms of your choice, provided that you also meet, for each linked 31: independent module, the terms and conditions of the license of that 32: module. An independent module is a module which is not derived from 33: or based on this library. If you modify this library, you may extend 34: this exception to your version of the library, but you are not 35: obligated to do so. If you do not wish to do so, delete this 36: exception statement from your version. */ 37: 38: package gnu.java.util.prefs; 39: 40: import java.util.prefs.*; 41: 42: /** 43: * Memory based PreferencesFactory useful for testing. 44: * Returns completely empty Preferences for system and user roots. 45: * All changes are only backed by the current instances in memory. 46: * 47: * @author Mark Wielaard (mark@klomp.org) 48: */ 49: public class MemoryBasedFactory implements PreferencesFactory { 50: 51: // Static fields containing the preferences root nodes 52: private static final Preferences systemPreferences 53: = new MemoryBasedPreferences(null, "", false); 54: private static final Preferences userPreferences 55: = new MemoryBasedPreferences(null, "", true); 56: 57: public Preferences systemRoot() { 58: return systemPreferences; 59: } 60: 61: public Preferences userRoot() { 62: return userPreferences; 63: } 64: }