/*
 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * 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,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
/*
 * $Id: KeySelectorResult.java,v 1.3 2005/05/10 15:47:42 mullan Exp $
 */
package javax.xml.crypto;

import java.security.Key;

/**
 * The result returned by the {@link KeySelector#select KeySelector.select}
 * method.
 * <p>
 * At a minimum, a <code>KeySelectorResult</code> contains the <code>Key</code>
 * selected by the <code>KeySelector</code>. Implementations of this interface
 * may add methods to return implementation or algorithm specific information,
 * such as a chain of certificates or debugging information.
 *
 * @author Sean Mullan
 * @author JSR 105 Expert Group
 * @since 1.6
 * @see KeySelector
 */
public interface KeySelectorResult {

    /**
     * Returns the selected key.
     *
     * @return the selected key, or <code>null</code> if none can be found
     */
    Key getKey();
}