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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_XDocumentRepository_idl__
#define __com_sun_star_rdf_XDocumentRepository_idl__
#include <com/sun/star/beans/Pair.idl>
#include <com/sun/star/rdf/XMetadatable.idl>
#include <com/sun/star/rdf/XRepository.idl>
module com { module sun { module star { module rdf {
/** extends XRepository with document-specific functionality.
<p>
This subclass of XRepository provides some methods which
only make sense for repositories that are attached to a document.
For example, the methods allow for manipulating in-content metadata,
which is stored as RDFa.
</p>
@since OOo 3.2
@see XRepositorySupplier
@see XDocumentMetadataAccess
*/
interface XDocumentRepository : XRepository
{
/** update the RDFa statement(s) that correspond to an ODF element in the
repository.
<p>
This method will do the following steps:
<ol>
<li>Remove all previously set RDFa statements for the Object parameter
from the repository</li>
<li>If the RDFaContent parameter is the empty `string`,
for every Predicate in the given list of Predicates,
add the following RDF statement to an unspecified named graph:
<ul>
<li><code>Subject Predicate
XLiteral(Object->getText()^^RDFaDatatype)</code></li>
</ul>
</li>
<li>If the RDFaContent parameter is not the empty `string`,
for every Predicate in the given list of Predicates,
add the following RDF statement to an unspecified named graph:
<ul>
<li>
<code>Subject Predicate XLiteral(RDFaContent^^RDFaDatatype)</code>
</li>
</ul>
</li>
</ol>
</p>
<p>
RDFa statements are handled specially because they are not logically
part of any named graph in the repository.
Also, they have rather unusual semantics;
just using XNamedGraph::addStatement() would be
ambiguous:
if the object is a XMetadatable, do we insert
the object itself (URI) or its literal content (RDFa)?
</p>
@param Subject
the subject of the RDF triple(s).
@param Predicates
the predicates of the RDF triple(s).
@param Object
the object of the RDF triple(s) is the text content of this
parameter.
@param RDFaContent
the <code>rdfa:content</code> attribute (may be the empty
`string`).
@param RDFaDatatype
the <code>rdfa:datatype</code> attribute (may be `NULL`)
@throws com::sun::star::lang::IllegalArgumentException
if any parameter is `NULL`, Predicates is empty,
or Object is of a type that can not have RDFa metadata attached.
@throws RepositoryException
if an error occurs when accessing the repository.
*/
void setStatementRDFa(
[in] XResource Subject,
[in] sequence<XURI> Predicates,
[in] XMetadatable Object,
[in] string RDFaContent,
[in] XURI RDFaDatatype)
raises( com::sun::star::lang::IllegalArgumentException,
RepositoryException );
/** remove the RDFa statement(s) that correspond to an ODF element from the
repository.
<p>
RDFa statements are handled specially because they are not logically
part of any graph.
</p>
@param Element
the element whose RDFa statement(s) should be removed
@throws com::sun::star::lang::IllegalArgumentException
if the given Element is `NULL`, or of a type that can not have
RDFa metadata attached.
@throws RepositoryException
if an error occurs when accessing the repository.
*/
void removeStatementRDFa([in] XMetadatable Element)
raises( com::sun::star::lang::IllegalArgumentException,
RepositoryException );
/** find the RDFa statement(s) associated with an ODF element.
@param Element
the ODF element for which RDFa statements should be found
@returns
<ul>
<li>if the element has no RDFa meta-data attributes:
the empty sequence.</li>
<li>if the element has RDFa meta-data attributes:
<ul>
<li>a sequence with the RDFa-statements corresponding to the
attributes.</li>
<li>a flag indicating whether there is a xhtml:content
attribute.</li>
</ul>
</li>
</ul>
@throws com::sun::star::lang::IllegalArgumentException
if the given Element is `NULL`, or of a type that can not have
RDFa metadata attached.
@throws RepositoryException
if an error occurs when accessing the repository.
@see Statement
*/
com::sun::star::beans::Pair< sequence<Statement>, boolean >
getStatementRDFa([in] XMetadatable Element)
raises( com::sun::star::lang::IllegalArgumentException,
RepositoryException );
/** gets matching RDFa statements from the repository.
<p>
This method exists because RDFa statements are not part of any named
graph, and thus they cannot be enumerated with
XNamedGraph::getStatements().
</p>
<p>
Any parameter may be `NULL`, which acts as a wildcard.
For example, to get all statements about myURI:
<code>getStatementsRDFa(myURI, null, null)</code>
</p>
@param Subject
the subject of the RDF triple.
@param Predicate
the predicate of the RDF triple.
@param Object
the object of the RDF triple.
@returns
an iterator over all RDFa statements in the repository that match
the parameters, represented as an
enumeration of Statement
@throws RepositoryException
if an error occurs when accessing the repository.
@see Statement
@see XRepository::getStatements
@see XNamedGraph::getStatements
*/
com::sun::star::container::XEnumeration/*<Statement>*/ getStatementsRDFa(
[in] XResource Subject,
[in] XURI Predicate,
[in] XNode Object)
raises( RepositoryException );
};
}; }; }; };
#endif
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