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

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

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 * accompanied this code).

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package java.security.cert;

/**

 * A selector that defines a set of criteria for selecting

 * {@code Certificate}s. Classes that implement this interface

 * are often used to specify which {@code Certificate}s should

 * be retrieved from a {@code CertStore}.

 * <p>

 * <b>Concurrent Access</b>

 * <p>

 * Unless otherwise specified, the methods defined in this interface are not

 * thread-safe. Multiple threads that need to access a single

 * object concurrently should synchronize amongst themselves and

 * provide the necessary locking. Multiple threads each manipulating

 * separate objects need not synchronize.

 *

 * @see Certificate

 * @see CertStore

 * @see CertStore#getCertificates

 *

 * @author      Steve Hanna

 * @since       1.4

 */

public interface CertSelector extends Cloneable {

    /**

     * Decides whether a {@code Certificate} should be selected.

     *

     * @param   cert    the {@code Certificate} to be checked

     * @return  {@code true} if the {@code Certificate}

     * should be selected, {@code false} otherwise

     */

    boolean match(Certificate cert);

    /**

     * Makes a copy of this {@code CertSelector}. Changes to the

     * copy will not affect the original and vice versa.

     *

     * @return a copy of this {@code CertSelector}

     */

    Object clone();

}