/** * Copyright 2004-2016 Riccardo Solmi. All rights reserved. * This file is part of the Whole Platform. * * The Whole Platform is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * The Whole Platform is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>. */ package org.whole.lang.resources; /** * @author Riccardo Solmi */ public class FunctionLibraryRegistry extends CompoundResourceRegistry<Resource> { private static class SingletonHolder { private static final FunctionLibraryRegistry instance = new FunctionLibraryRegistry(); } public static final FunctionLibraryRegistry instance() { FunctionLibraryRegistry registry = SingletonHolder.instance; String registryId = FunctionLibraryRegistry.class.getName(); if (!ResourceRegistry.hasRegistry(registryId)) ResourceRegistry.putRegistry(registryId, registry); return registry; } protected FunctionLibraryRegistry() { } }