1 /* 2 * ==================================================================== 3 * 4 * The Apache Software License, Version 1.1 5 * 6 * Copyright (c) 1999-2003 The Apache Software Foundation. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. The end-user documentation included with the redistribution, if 22 * any, must include the following acknowledgement: 23 * "This product includes software developed by the 24 * Apache Software Foundation (http://www.apache.org/)." 25 * Alternately, this acknowledgement may appear in the software itself, 26 * if and wherever such third-party acknowledgements normally appear. 27 * 28 * 4. The names "The Jakarta Project", "Commons", and "Apache Software 29 * Foundation" must not be used to endorse or promote products derived 30 * from this software without prior written permission. For written 31 * permission, please contact apache@apache.org. 32 * 33 * 5. Products derived from this software may not be called "Apache" 34 * nor may "Apache" appear in their names without prior written 35 * permission of the Apache Software Foundation. 36 * 37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * ==================================================================== 50 * 51 * This software consists of voluntary contributions made by many 52 * individuals on behalf of the Apache Software Foundation. For more 53 * information on the Apache Software Foundation, please see 54 * <http://www.apache.org/>. 55 * 56 */ 57 58 package org.apache.commons.jrcs.diff; 59 60 /** 61 * A simple interface for implementations of differencing algorithms. 62 * 63 * @version $Revision: 1.1 $ $Date: 2004/10/06 09:47:23 $ 64 * 65 * @author <a HREF="mailto:bwm@hplb.hpl.hp.com">Brian McBride</a> 66 */ 67 public interface DiffAlgorithm 68 { 69 /** 70 * Computes the difference between the original 71 * sequence and the revised sequence and returns it 72 * as a {@link org.apache.commons.jrcs.diff.Revision Revision} 73 * object. 74 * <p> 75 * The revision can be used to construct the revised sequence 76 * from the original sequence. 77 * 78 * @param rev the revised text 79 * @return the revision script. 80 * @throws DifferentiationFailedException if the diff could not be computed. 81 */ 82 public abstract Revision diff(Object[] orig, Object[] rev) 83 throws DifferentiationFailedException; 84 }