/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
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 *************************************************************/


#ifndef __com_sun_star_rdf_XRepository_idl__
#define __com_sun_star_rdf_XRepository_idl__

#ifndef __com_sun_star_lang_IllegalArgumentException_idl__
#include <com/sun/star/lang/IllegalArgumentException.idl>
#endif

#ifndef __com_sun_star_container_ElementExistException_idl__
#include <com/sun/star/container/ElementExistException.idl>
#endif

#ifndef __com_sun_star_container_NoSuchElementException_idl__
#include <com/sun/star/container/NoSuchElementException.idl>
#endif

#ifndef __com_sun_star_container_XEnumeration_idl__
#include <com/sun/star/container/XEnumeration.idl>
#endif

#ifndef __com_sun_star_io_IOException_idl__
#include <com/sun/star/io/IOException.idl>
#endif

#ifndef __com_sun_star_io_XInputStream_idl__
#include <com/sun/star/io/XInputStream.idl>
#endif

#ifndef __com_sun_star_io_XOutputStream_idl__
#include <com/sun/star/io/XOutputStream.idl>
#endif

#ifndef __com_sun_star_datatransfer_UnsupportedFlavorException_idl__
#include <com/sun/star/datatransfer/UnsupportedFlavorException.idl>
#endif

#ifndef __com_sun_star_rdf_FileFormat_idl__
#include <com/sun/star/rdf/FileFormat.idl>
#endif

#ifndef __com_sun_star_rdf_ParseException_idl__
#include <com/sun/star/rdf/ParseException.idl>
#endif

#ifndef __com_sun_star_rdf_QueryException_idl__
#include <com/sun/star/rdf/QueryException.idl>
#endif

#ifndef __com_sun_star_rdf_RepositoryException_idl__
#include <com/sun/star/rdf/RepositoryException.idl>
#endif

#ifndef __com_sun_star_rdf_XBlankNode_idl__
#include <com/sun/star/rdf/XBlankNode.idl>
#endif

#ifndef __com_sun_star_rdf_XURI_idl__
#include <com/sun/star/rdf/XURI.idl>
#endif

#ifndef __com_sun_star_rdf_Statement_idl__
#include <com/sun/star/rdf/Statement.idl>
#endif

#ifndef __com_sun_star_rdf_XQuerySelectResult_idl__
#include <com/sun/star/rdf/XQuerySelectResult.idl>
#endif

#ifndef __com_sun_star_rdf_XNamedGraph_idl__
#include <com/sun/star/rdf/XNamedGraph.idl>
#endif


//=============================================================================

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

//=============================================================================
/** provides access to a set of named RDF graphs.

    <p>
    A repository for storing information according to the data model of the
    <a href="http://www.w3.org/RDF/">Resource Description Framework</a>.
    This interface may be used e.g. for repositories that correspond to a
    loaded ODF document, or for repositories that are backed by some kind of
    database.
    </p>
    <p>
    The RDF triples are stored as a set of named RDF graphs.
    Importing and exporting files in the
    <a href="http://www.w3.org/TR/rdf-syntax-grammar/">RDF/XML</a>
    format is supported.
    Support for other file formats is optional.
    Support for querying the repository with the
    <a href="http://www.w3.org/TR/rdf-sparql-query/">SPARQL</a>
    query language is provided.
    </p>


    @since OOo 3.2

    @see XRepositorySupplier
    @see XDocumentRepository
 */
interface XRepository
{

    //-------------------------------------------------------------------------
    /** creates a fresh unique blank node.

        @returns
            a newly generated blank node which is unique in this repository
     */
    XBlankNode createBlankNode();


    //-------------------------------------------------------------------------
    /** imports a named graph into the repository.

        <p>
        Implementations must support RDF/XML format.
        Support for other RDF formats is optional.
        If the format is not supported by the implementation, an
        <type scope="com::sun::star::datatransfer">UnsupportedFlavorException
        </type> is raised.
        If the format requires use of a BaseURI, but none is given, an
        <type scope="com::sun::star::lang">IllegalArgumentException</type>
        is raised.
        </p>

        @param Format
            the format of the input file

        @param InStream
            the input stream, containing an RDF file in the specified format

        @param GraphName
            the name of the graph that is imported

        @param BaseURI
            a base URI to resolve relative URI references

        @returns
            the imported graph

        @throws com::sun::star::lang::IllegalArgumentException
            if the given stream or the GraphName is <NULL/>,
            or BaseURI is <NULL/> and the format requires use of a base URI

        @throws com::sun::star::datatransfer::UnsupportedFlavorException
            if the format requested is unknown or not supported

        @throws com::sun::star::container::ElementExistException
            if a graph with the given GraphName already exists in the
            repository

        @throws ParseException
            if the input does not conform to the specified file format.

        @throws RepositoryException
            if an error occurs when accessing the repository.

        @throws com::sun::star::io::IOException
            if an I/O error occurs.

        @see FileFormat
     */
    XNamedGraph importGraph([in] /*FileFormat*/ short Format,
                [in] com::sun::star::io::XInputStream InStream,
                [in] XURI GraphName, [in] XURI BaseURI)
        raises( com::sun::star::lang::IllegalArgumentException,
                com::sun::star::datatransfer::UnsupportedFlavorException,
                com::sun::star::container::ElementExistException,
                ParseException,
                RepositoryException,
                com::sun::star::io::IOException );

    //-------------------------------------------------------------------------
    /** exports a named graph from the repository.

        <p>
        Implementations must support RDF/XML format.
        Support for other RDF formats is optional.
        If the format is not supported by the implementation, an
        <type scope="com::sun::star::datatransfer">UnsupportedFlavorException
        </type> is raised.
        </p>

        @param Format
            the format of the output file

        @param OutStream
            the target output stream

        @param GraphName
            the name of the graph that is to be exported

        @param BaseURI
            a base URI to resolve relative URI references

        @throws com::sun::star::lang::IllegalArgumentException
            if the given stream or the GraphName is <NULL/>,
            or BaseURI is <NULL/> and the format requires use of a base URI

        @throws com::sun::star::datatransfer::UnsupportedFlavorException
            if the format requested is unknown or not supported

        @throws com::sun::star::container::NoSuchElementException
            if a graph with the given GraphName does not exist

        @throws RepositoryException
            if an error occurs when accessing the repository.

        @throws com::sun::star::io::IOException
            if an I/O error occurs.

        @see FileFormat
     */
    void exportGraph([in] /*FileFormat*/ short Format,
                [in] com::sun::star::io::XOutputStream OutStream,
                [in] XURI GraphName, [in] XURI BaseURI)
        raises( com::sun::star::lang::IllegalArgumentException,
                com::sun::star::datatransfer::UnsupportedFlavorException,
                com::sun::star::container::NoSuchElementException,
                RepositoryException,
                com::sun::star::io::IOException );

    //-------------------------------------------------------------------------
    /** gets the names of all the graphs in the repository.

        @returns
            a list containing the names of the graphs in the repository

        @throws RepositoryException
            if an error occurs when accessing the repository.
     */
    sequence<XURI> getGraphNames()
        raises( RepositoryException );

    //-------------------------------------------------------------------------
    /** gets a graph by its name.

        @param GraphName
            the name of the graph that is to be returned

        @returns
            the graph with the given name if it exists, else <NULL/>

        @throws com::sun::star::lang::IllegalArgumentException
            if the given GraphName is invalid

        @throws RepositoryException
            if an error occurs when accessing the repository.
     */
    XNamedGraph getGraph([in] XURI GraphName)
        raises( com::sun::star::lang::IllegalArgumentException,
                RepositoryException );

    //-------------------------------------------------------------------------
    /** creates a graph with the given name.

        <p>
        The name must be unique within the repository.
        </p>

        @param GraphName
            the name of the graph that is to be created

        @returns
            the graph with the given name

        @throws com::sun::star::lang::IllegalArgumentException
            if the given GraphName is invalid

        @throws com::sun::star::container::ElementExistException
            if a graph with the given GraphName already exists

        @throws RepositoryException
            if an error occurs when accessing the repository.
     */
    XNamedGraph createGraph([in] XURI GraphName)
        raises( com::sun::star::lang::IllegalArgumentException,
                com::sun::star::container::ElementExistException,
                RepositoryException );

    //-------------------------------------------------------------------------
    /** destroys the graph with the given name, and removes it from the
        repository.

        <p>
        This invalidates any instances of <type>XNamedGraph</type>
        for the argument.
        </p>

        @param GraphName
            the name of the graph that is to be destroyed

        @throws com::sun::star::lang::IllegalArgumentException
            if the given GraphName is invalid

        @throws com::sun::star::container::NoSuchElementException
            if a graph with the given GraphName does not exist

        @throws RepositoryException
            if an error occurs when accessing the repository.
     */
    void destroyGraph([in] XURI GraphName)
        raises( com::sun::star::lang::IllegalArgumentException,
                com::sun::star::container::NoSuchElementException,
                RepositoryException );

    //-------------------------------------------------------------------------
    /** gets matching RDF statements from the repository.

        <p>
        Any parameter may be <NULL/>, which acts as a wildcard.
        For example, to get all statements about myURI:
        <code>getStatements(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 RDF statements in the repository that match
            the parameters, represented as an
            enumeration of <type>Statement</type>

        @throws RepositoryException
            if an error occurs when accessing the repository.

        @see Statement
        @see XNamedGraph::getStatements
     */
    com::sun::star::container::XEnumeration/*<Statement>*/ getStatements(
            [in] XResource Subject,
            [in] XURI Predicate,
            [in] XNode Object)
        raises( RepositoryException );


    //-------------------------------------------------------------------------
    /** executes a SPARQL "SELECT" query.

        <p>
        This method runs a SPARQL query that returns a list of variable
        bindings, i.e., a query beginning with "SELECT".
        The result is basically a (rectangular) table with labeled columns,
        where individual cells may be <NULL/>.
        </p>

        @param Query
            the SPARQL query <atom>string</atom>

        @returns
            an enumeration, containing
            <ol>
            <li>a list of query variable names (column labels)</li>
            <li>the query results (rows),
                each being a list of bindings for the above variables</li>
            </ol>

        @throws QueryException
            if the query is malformed, or evaluation fails

        @throws RepositoryException
            if an error occurs when accessing the repository.

        @see XQuerySelectResult
     */
    XQuerySelectResult querySelect([in] string Query)
        raises( QueryException,
                RepositoryException );

    //-------------------------------------------------------------------------
    /** executes a SPARQL "CONSTRUCT" query.

        <p>
        This method runs a SPARQL query that constructs a result graph,
        i.e., a query beginning with "CONSTRUCT".
        </p>

        @param Query
            the SPARQL query <atom>string</atom>

        @returns
            an iterator over the query result graph, represented as an
            enumeration of <type>Statement</type>

        @throws QueryException
            if the query is malformed, or evaluation fails

        @throws RepositoryException
            if an error occurs when accessing the repository.

        @see Statement
     */
    com::sun::star::container::XEnumeration/*<Statement>*/ queryConstruct(
            [in] string Query)
        raises( QueryException,
                RepositoryException );

    //-------------------------------------------------------------------------
    /** executes a SPARQL "ASK" query.

        <p>
        This method runs a SPARQL query that computes a boolean,
        i.e., a query beginning with "ASK".
        </p>

        @param Query
            the SPARQL query <atom>string</atom>

        @returns
            the boolean query result

        @throws QueryException
            if the query is malformed, or evaluation fails

        @throws RepositoryException
            if an error occurs when accessing the repository.
     */
    boolean queryAsk([in] string Query)
        raises( QueryException,
                RepositoryException );

};

//=============================================================================

}; }; }; };

#endif