001    /**
002     * $Id: ObjectComparator.java,v 1.4 2010/12/30 17:33:23 oboehm Exp $
003     *
004     * Copyright (c) 2008 by Oliver Boehm
005     *
006     * Licensed under the Apache License, Version 2.0 (the "License");
007     * you may not use this file except in compliance with the License.
008     * You may obtain a copy of the License at
009     *
010     *   http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express orimplied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     *
018     * (c)reated 11.02.2009 by oliver (ob@oasd.de)
019     */
020    package patterntesting.runtime.util;
021    
022    import java.io.Serializable;
023    import java.util.Comparator;
024    
025    /**
026     * Compares two objects using their string representation.
027     *
028     * @author <a href="boehm@javatux.de">oliver</a>
029     * @since 11.02.2009
030     * @version $Revision: 1.4 $
031     */
032    public class ObjectComparator implements Comparator<Object>, Serializable {
033    
034        private static final long serialVersionUID = 20100106L;
035    
036        /**
037         * Compare.
038         *
039         * @param o1 the object 1
040         * @param o2 the object 2
041         * @return 0 if both are equals
042         * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
043         */
044        public int compare(final Object o1, final Object o2) {
045            String s1 = o1.toString();
046            String s2 = o2.toString();
047            return s1.compareTo(s2);
048        }
049    
050    }