/*
* 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.resolver.spi;
// Local packages
import org.mulgara.query.Cursor;
import org.mulgara.query.TuplesException;
import org.mulgara.query.Variable;
import org.mulgara.store.nodepool.NodePool;
/**
* A collection of localized RDF statements.
*
* @created 2004-04-21
* @author <a href="http://staff.tucanatech.com/raboczi">Simon Raboczi</a>
* @version $Revision: 1.8 $
* @modified $Date: 2005/01/05 04:58:50 $
* @maintenanceAuthor $Author: newmana $
* @company <a href="mailto:info@tucanatech.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>
*/
public interface Statements extends Cursor, Cloneable {
/** A variable for the subject position in a triple */
static final Variable SUBJECT = new Variable("subject");
/** A variable for the predicate position in a triple */
static final Variable PREDICATE = new Variable("predicate");
/** A variable for the object position in a triple */
static final Variable OBJECT = new Variable("object");
/** Stopgap measure until the stringpool gets a <q>no match</q> value. */
static final long NONE = NodePool.NONE;
/** Return the subject node of the current triple. */
public long getSubject() throws TuplesException;
/** Return the predicate node of the current triple. */
public long getPredicate() throws TuplesException;
/** Return the object node of the current triple. */
public long getObject() throws TuplesException;
public Object clone();
}