/*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Kowari Metadata Store.
*
* The Initial Developer of the Original Code is Plugged In Software Pty
* Ltd (http://www.pisoftware.com, mailto:info@pisoftware.com). Portions
* created by Plugged In Software Pty Ltd are Copyright (C) 2001,2002
* Plugged In Software Pty Ltd. All Rights Reserved.
*
* Contributor(s): N/A.
*
* [NOTE: The text of this Exhibit A may differ slightly from the text
* of the notices in the Source Code files of the Original Code. You
* should use the text of this Exhibit A rather than the text found in the
* Original Code Source Code for Your Modifications.]
*
*/
package org.mulgara.server.rmi;
// Java 2 Standard Packages
import java.rmi.*;
import java.io.*;
import java.util.*;
import java.net.*;
// JRDF
import org.jrdf.graph.*;
// emory util package
import edu.emory.mathcs.util.remote.io.*;
// Locally written packages
import org.mulgara.query.Answer;
import org.mulgara.query.GraphExpression;
import org.mulgara.query.Query;
import org.mulgara.query.QueryException;
/**
* Java RMI remote interface for drivers.
*
* @author Andrew Newman
*
* @created 2004-10-02
*
* @version $Revision: 1.9 $
*
* @modified $Date: 2005/01/05 04:59:02 $
*
* @maintenanceAuthor $Author: newmana $
*
* @company <A href="mailto:info@PIsoftware.com">Plugged In Software</A>
*
* @copyright © 2004 <A href="http://www.PIsoftware.com/">Plugged In
* Software Pty Ltd</A>
*
* @licence <a href="{@docRoot}/../../LICENCE">Mozilla Public License v1.1</a>
*/
interface RemoteJRDFSession extends RemoteSession {
/**
* Returns an answer containing a set of statements in the model that match a
* given triple. A null value for any of the parts of a triple are treated as
* unconstrained, any values will be returned.
*
* @param modelURI URI of the model to be searched
* @param subject The subject of the triple to find.
* @param predicate The predicate of the triple to find.
* @param object The object of the triple to find.
* @throws GraphException if the model cannot be searched
* @return Answer containing the triples that match the constraint
*/
public RemoteAnswer find(URI modelURI, SubjectNode subject,
PredicateNode predicate, ObjectNode object)
throws GraphException, RemoteException;
/**
* Test the graph for the occurrence of the triple. A null value for any
* of the parts of a triple are treated as unconstrained, any values will be
* returned.
*
* @param modelURI URI of the model to be searched
* @param subject The subject of the triple to find.
* @param predicate The predicate of the triple to find.
* @param object The object of the triple to find.
* @return True if the triple is found in the graph, otherwise false.
* @throws GraphException If there was an error accessing the graph.
*/
public boolean contains(URI modelURI, SubjectNode subject,
PredicateNode predicate, ObjectNode object)
throws GraphException, RemoteException;
/**
* Returns the number of triples in the graph.
*
* @return the number of triples in the graph.
*/
public long getNumberOfTriples(URI graphURI) throws RemoteException;
}