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