001/* Copyright (C) 2013 TU Dortmund
002 * This file is part of AutomataLib, http://www.automatalib.net/.
003 * 
004 * AutomataLib is free software; you can redistribute it and/or
005 * modify it under the terms of the GNU Lesser General Public
006 * License version 3.0 as published by the Free Software Foundation.
007 * 
008 * AutomataLib is distributed in the hope that it will be useful,
009 * but WITHOUT ANY WARRANTY; without even the implied warranty of
010 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
011 * Lesser General Public License for more details.
012 * 
013 * You should have received a copy of the GNU Lesser General Public
014 * License along with AutomataLib; if not, see
015 * http://www.gnu.de/documents/lgpl.en.html.
016 */
017package net.automatalib.commons.util.ref;
018
019/**
020 * Utility functions for dealing with references.
021 * 
022 * @author Malte Isberner <malte.isberner@cs.uni-dortmund.de>
023 *
024 */
025public abstract class Refs {
026
027        /**
028         * Creates a strong reference to the given referent.
029         * @param referent the referent.
030         * @return a strong reference to the referent.
031         */
032        public static <T> StrongRef<T> strong(T referent) {
033                return new StrongRef<T>(referent);
034        }
035        
036        /**
037         * Creates a weak reference to the given referent.
038         * @param referent the referent.
039         * @return a weak reference to the referent.
040         */
041        public static <T> WeakRef<T> weak(T referent) {
042                return new WeakRef<T>(referent);
043        }
044        
045
046        private Refs() {}
047}
048