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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef __com_sun_star_rdf_XMetadatable_idl__
#define __com_sun_star_rdf_XMetadatable_idl__

#include <com/sun/star/lang/IllegalArgumentException.idl>
#include <com/sun/star/beans/StringPair.idl>
#include <com/sun/star/rdf/XURI.idl>



module com {   module sun {   module star {   module rdf {

/** marks an object representing an ODF element that may have RDF meta data
    attached.

    <p>
    To make using ODF elements as part of RDF statements more convenient,
    this interface inherits from XURI.
    The URI is constructed by concatenating the URI of the document, the
    stream name, a fragment separator, and the XML ID.
    </p>

    <p>
    Note that using the XURI interface on an instance of
    XMetadatable may have the side effect of creating a metadata
    reference for the instance.
    </p>

    @since OOo 3.2

    @see XRepository
    @see XDocumentMetadataAccess
 */
interface XMetadatable : XURI
{
    /** a metadata reference, comprising the stream name and the XML ID.

        <p>
        Note that this metadata reference must be unique for the ODF document.
        This implies that the XML ID part must be unique for every stream.
        A pair of two empty strings signifies "no metadata reference".
        For example: Pair("content.xml", "foo-element-1")
        </p>

        @throws com::sun::star::lang::IllegalArgumentException
            if the given metadata reference is invalid, or not unique
     */
    [attribute] com::sun::star::beans::StringPair MetadataReference {
        set raises ( com::sun::star::lang::IllegalArgumentException );
    };

    /** creates a metadata reference for this object, if necessary.

        <p>
        If this object already has a metadata reference, do nothing;
        otherwise, create metadata reference with a fresh, unique XML ID
        and assign it to the MetadataReference attribute.
        </p>
     */
    void ensureMetadataReference();

};


}; }; }; };

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */