f@0: /* f@0: CCmI Editor - A Collaborative Cross-Modal Diagram Editing Tool f@0: f@0: Copyright (C) 2011 Queen Mary University of London (http://ccmi.eecs.qmul.ac.uk/) f@0: f@0: This program is free software: you can redistribute it and/or modify f@0: it under the terms of the GNU General Public License as published by f@0: the Free Software Foundation, either version 3 of the License, or f@0: (at your option) any later version. f@0: f@0: This program is distributed in the hope that it will be useful, f@0: but WITHOUT ANY WARRANTY; without even the implied warranty of f@0: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the f@0: GNU General Public License for more details. f@0: f@0: You should have received a copy of the GNU General Public License f@0: along with this program. If not, see . f@0: */ f@0: f@0: package uk.ac.qmul.eecs.ccmi.sound; f@0: f@0: /** f@0: * The factory class to create {@code Sound} instances. f@0: * f@0: */ f@0: public abstract class SoundFactory { f@0: f@0: public static Sound createInstance(){ f@0: sound = new BeadsSound(); f@0: return sound; f@0: } f@0: f@0: public static Sound getInstance(){ f@0: if(sound == null) f@0: throw new IllegalStateException("createInstance() must be called before any getInstance() call"); f@0: return sound; f@0: } f@0: f@0: private static Sound sound; f@0: }