001    /*
002     * The contents of this file are subject to the Mozilla Public License
003     * Version 1.1 (the "License");  you may not use this file except in 
004     * compliance with the License.  You may obtain a copy of the License at
005     * http://www.mozilla.org/MPL/
006     *
007     * Software distributed under the License is distributed on an "AS IS" basis,
008     * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
009     * the specific language governing rights and limitations under the License.
010     *
011     * The Original Code is Protege-2000.
012     *
013     * The Initial Developer of the Original Code is Stanford University. Portions
014     * created by Stanford University are Copyright (C) 2007.  All Rights Reserved.
015     *
016     * Protege was developed by Stanford Medical Informatics
017     * (http://www.smi.stanford.edu) at the Stanford University School of Medicine
018     * with support from the National Library of Medicine, the National Science
019     * Foundation, and the Defense Advanced Research Projects Agency.  Current
020     * information about Protege can be obtained at http://protege.stanford.edu.
021     *
022     */
023    
024    package edu.stanford.smi.protegex.owl.model;
025    
026    
027    /**
028     * The base interface of intersection, union and complement metaclasses.
029     *
030     * @author Holger Knublauch  <holger@knublauch.com>
031     */
032    public interface OWLLogicalClass extends OWLAnonymousClass {
033    
034        /**
035         * Gets the OWL system property that is used to store the operands of this
036         * logical class type.  Depending on the subclass, these values are either
037         * owl:complementOf, owl:intersectionOf or owl:unionOf
038         *
039         * @return the operands property
040         */
041        RDFProperty getOperandsProperty();
042    
043    
044        /**
045         * Gets the (unicode) character used for expressions of this type.
046         *
047         * @return the symbol
048         */
049        char getOperatorSymbol();
050    }
051