001    /**
002     * Copyright (c) 2000-2010 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.kernel.util;
016    
017    import java.io.Serializable;
018    
019    /**
020     * @author Brian Wing Shun Chan
021     */
022    public class TransientValue<V> implements Serializable {
023    
024            public TransientValue(V value) {
025                    _value = value;
026            }
027    
028            public V getValue() {
029                    return _value;
030            }
031    
032            public boolean isNotNull() {
033                    return !isNull();
034            }
035    
036            public boolean isNull() {
037                    if (_value == null) {
038                            return true;
039                    }
040                    else {
041                            return false;
042                    }
043            }
044    
045            public void setValue(V value) {
046                    _value = value;
047            }
048    
049            private transient V _value;
050    
051    }