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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

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 *

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package java.security.cert;

/**

 * This class is an abstraction of certificate revocation lists (CRLs) that

 * have different formats but important common uses. For example, all CRLs

 * share the functionality of listing revoked certificates, and can be queried

 * on whether or not they list a given certificate.

 * <p>

 * Specialized CRL types can be defined by subclassing off of this abstract

 * class.

 *

 * @author Hemma Prafullchandra

 *

 *

 * @see X509CRL

 * @see CertificateFactory

 *

 * @since 1.2

 */

public abstract class CRL {

    // the CRL type

    private String type;

    /**

     * Creates a CRL of the specified type.

     *

     * @param type the standard name of the CRL type.

     * See the <a href=

     * "{@docRoot}/../specs/security/standard-names.html">

     * Java Security Standard Algorithm Names</a> document

     * for information about standard CRL types.

     */

    protected CRL(String type) {

        this.type = type;

    }

    /**

     * Returns the type of this CRL.

     *

     * @return the type of this CRL.

     */

    public final String getType() {

        return this.type;

    }

    /**

     * Returns a string representation of this CRL.

     *

     * @return a string representation of this CRL.

     */

    public abstract String toString();

    /**

     * Checks whether the given certificate is on this CRL.

     *

     * @param cert the certificate to check for.

     * @return true if the given certificate is on this CRL,

     * false otherwise.

     */

    public abstract boolean isRevoked(Certificate cert);

}