    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 *      https://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 * <strong>NOTE:</strong> This has been replaced by the new
    026 *  {@link org.apache.commons.validator.routines.ISBNValidator}.
    027 *
    028 * @since 1.2.0
    029 * @deprecated Use the new ISBNValidator in the routines package
    030 */
    031@Deprecated
    032public class ISBNValidator {
    033
    034    /**
    035     * Constructs a new instance.
    036     */
    037    public ISBNValidator() {
    038    }
    039
    040    /**
    041     * If the ISBN is formatted with space or dash separators its format is
    042     * validated.  Then the digits in the number are weighted, summed, and
    043     * divided by 11 according to the ISBN algorithm.  If the result is zero,
    044     * the ISBN is valid.  This method accepts formatted or raw ISBN codes.
    045     *
    046     * @param isbn Candidate ISBN number to be validated. {@code null} is
    047     * considered invalid.
    048     * @return true if the string is a valid ISBN code.
    049     */
    050    public boolean isValid(final String isbn) {
    051        return org.apache.commons.validator.routines.ISBNValidator.getInstance().isValidISBN10(isbn);
    052    }
    053
    054}