/* * QueueList.java * * Copyright (C) 2010 Leo Osvald <leo.osvald@gmail.com> * * This file is part of SGLJ. * * SGLJ 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. * * SGLJ 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 this library. If not, see <http://www.gnu.org/licenses/>. */ package org.sglj.util; import java.util.List; import java.util.Queue; /** * Extension of {@link List} interface which * guarantees that all queue operations are implemented * efficiently.<br> * In general, implementations should ensure that no * <code>null</code> values can be inserted. * * @author Leo Osvald * @version 1.0 * @param <E> type of elements */ public interface QueueList<E> extends List<E>, Queue<E> { }