1 /* 2 * Copyright (c) 1998, 2006, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.security.cert; 27 28 /** 29 * This class is an abstraction of certificate revocation lists (CRLs) that 30 * have different formats but important common uses. For example, all CRLs 31 * share the functionality of listing revoked certificates, and can be queried 32 * on whether or not they list a given certificate. 33 * <p> 34 * Specialized CRL types can be defined by subclassing off of this abstract 35 * class. 36 * 37 * @author Hemma Prafullchandra 38 * 39 * 40 * @see X509CRL 41 * @see CertificateFactory 42 * 43 * @since 1.2 44 */ 45 46 public abstract class CRL { 47 48 // the CRL type 49 private String type; 50 51 /** 52 * Creates a CRL of the specified type. 53 * 54 * @param type the standard name of the CRL type. 55 * See Appendix A in the <a href= 56 * "{@docRoot}openjdk-redirect.html?v=8&path=/technotes/guides/security/crypto/CryptoSpec.html#AppA"> 57 * Java Cryptography Architecture API Specification & Reference </a> 58 * for information about standard CRL types. 59 */ CRL(String type)60 protected CRL(String type) { 61 this.type = type; 62 } 63 64 /** 65 * Returns the type of this CRL. 66 * 67 * @return the type of this CRL. 68 */ getType()69 public final String getType() { 70 return this.type; 71 } 72 73 /** 74 * Returns a string representation of this CRL. 75 * 76 * @return a string representation of this CRL. 77 */ toString()78 public abstract String toString(); 79 80 /** 81 * Checks whether the given certificate is on this CRL. 82 * 83 * @param cert the certificate to check for. 84 * @return true if the given certificate is on this CRL, 85 * false otherwise. 86 */ isRevoked(Certificate cert)87 public abstract boolean isRevoked(Certificate cert); 88 } 89