/*

 * 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: URIReference.java,v 1.4 2005/05/10 15:47:42 mullan Exp $

 */

package javax.xml.crypto;

/**

 * Identifies a data object via a URI-Reference, as specified by

 * <a href="http://www.ietf.org/rfc/rfc2396.txt">RFC 2396</a>.

 *

 * <p>Note that some subclasses may not have a <code>type</code> attribute

 * and for objects of those types, the {@link #getType} method always returns

 * <code>null</code>.

 *

 * @author Sean Mullan

 * @author JSR 105 Expert Group

 * @since 1.6

 * @see URIDereferencer

 */

public interface URIReference {

    /**

     * Returns the URI of the referenced data object.

     *

     * @return the URI of the data object in RFC 2396 format (may be

     *    <code>null</code> if not specified)

     */

    String getURI();

    /**

     * Returns the type of data referenced by this URI.

     *

     * @return the type (a URI) of the data object (may be <code>null</code>

     *    if not specified)

     */

    String getType();

}