001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.validator;
018
019/**
020 * A class for validating 10 digit ISBN codes.
021 * Based on this 
022 * <a href="http://www.isbn.org/standards/home/isbn/international/html/usm4.htm">
023 * algorithm</a>
024 *
025 * <b>NOTE:</b> This has been replaced by the new
026 *  {@link org.apache.commons.validator.routines.ISBNValidator}.
027 *
028 * @version $Revision: 591503 $ $Date: 2007-11-03 00:00:06 +0100 (Sa, 03 Nov 2007) $
029 * @since Validator 1.2.0
030 * @deprecated Use the new ISBNValidator in the routines package
031 */
032public class ISBNValidator {
033
034    /**
035     * Default Constructor.
036     */
037    public ISBNValidator() {
038        super();
039    }
040
041    /**
042     * If the ISBN is formatted with space or dash separators its format is
043     * validated.  Then the digits in the number are weighted, summed, and
044     * divided by 11 according to the ISBN algorithm.  If the result is zero,
045     * the ISBN is valid.  This method accepts formatted or raw ISBN codes.
046     *
047     * @param isbn Candidate ISBN number to be validated. <code>null</code> is
048     * considered invalid.
049     * @return true if the string is a valid ISBN code.
050     */
051    public boolean isValid(String isbn) {
052        return org.apache.commons.validator.routines.ISBNValidator.getInstance().isValidISBN10(isbn);
053    }
054
055}