001    /**
002     * Copyright (c) 2000-2011 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.model.impl;
016    
017    import com.liferay.portal.model.Lock;
018    
019    /**
020     * @author Brian Wing Shun Chan
021     */
022    public class LockImpl extends LockModelImpl implements Lock {
023    
024            public LockImpl() {
025            }
026    
027            public long getExpirationTime() {
028                    if (isNeverExpires()) {
029                            return 0;
030                    }
031                    else {
032                            return getExpirationDate().getTime() - getCreateDate().getTime();
033                    }
034            }
035    
036            public boolean isExpired() {
037                    if (isNeverExpires()) {
038                            return false;
039                    }
040                    else if (System.currentTimeMillis() > getExpirationDate().getTime()) {
041                            return true;
042                    }
043                    else {
044                            return false;
045                    }
046            }
047    
048            public boolean isNeverExpires() {
049                    if (getExpirationDate() == null) {
050                            return true;
051                    }
052                    else {
053                            return false;
054                    }
055            }
056    
057    }