001: /*****************************************************************************
002: * Source code information
003: * -----------------------
004: * Original author Ian Dickinson, HP Labs Bristol
005: * Author email Ian.Dickinson@hp.com
006: * Package Jena 2
007: * Web http://sourceforge.net/projects/jena/
008: * Created 28-Apr-2003
009: * Filename $RCSfile: UnionClassImpl.java,v $
010: * Revision $Revision: 1.12 $
011: * Release status $State: Exp $
012: *
013: * Last modified on $Date: 2008/01/02 12:08:02 $
014: * by $Author: andy_seaborne $
015: *
016: * (c) Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
017: * (see footer for full conditions)
018: *****************************************************************************/package com.hp.hpl.jena.ontology.impl;
019:
020: // Imports
021: ///////////////
022: import com.hp.hpl.jena.enhanced.*;
023: import com.hp.hpl.jena.graph.Node;
024: import com.hp.hpl.jena.ontology.*;
025: import com.hp.hpl.jena.rdf.model.Property;
026:
027: /**
028: * <p>
029: * Implementation of a node representing a union class description.
030: * </p>
031: *
032: * @author Ian Dickinson, HP Labs
033: * (<a href="mailto:Ian.Dickinson@hp.com" >email</a>)
034: * @version CVS $Id: UnionClassImpl.java,v 1.12 2008/01/02 12:08:02 andy_seaborne Exp $
035: */
036: public class UnionClassImpl extends BooleanClassDescriptionImpl
037: implements UnionClass {
038: // Constants
039: //////////////////////////////////
040:
041: // Static variables
042: //////////////////////////////////
043:
044: /**
045: * A factory for generating UnionClass facets from nodes in enhanced graphs.
046: * Note: should not be invoked directly by user code: use
047: * {@link com.hp.hpl.jena.rdf.model.RDFNode#as as()} instead.
048: */
049: public static Implementation factory = new Implementation() {
050: public EnhNode wrap(Node n, EnhGraph eg) {
051: if (canWrap(n, eg)) {
052: return new UnionClassImpl(n, eg);
053: } else {
054: throw new ConversionException("Cannot convert node "
055: + n + " to UnionClass");
056: }
057: }
058:
059: public boolean canWrap(Node node, EnhGraph eg) {
060: // node will support being an UnionClass facet if it has rdf:type owl:Class and an owl:unionOf statement (or equivalents)
061: Profile profile = (eg instanceof OntModel) ? ((OntModel) eg)
062: .getProfile()
063: : null;
064: Property union = (profile == null) ? null : profile
065: .UNION_OF();
066:
067: return (profile != null)
068: && profile.isSupported(node, eg, OntClass.class)
069: && union != null
070: && eg.asGraph().contains(node, union.asNode(),
071: Node.ANY);
072: }
073: };
074:
075: // Instance variables
076: //////////////////////////////////
077:
078: // Constructors
079: //////////////////////////////////
080:
081: /**
082: * <p>
083: * Construct a union class node represented by the given node in the given graph.
084: * </p>
085: *
086: * @param n The node that represents the resource
087: * @param g The enh graph that contains n
088: */
089: public UnionClassImpl(Node n, EnhGraph g) {
090: super (n, g);
091: }
092:
093: // External signature methods
094: //////////////////////////////////
095:
096: public Property operator() {
097: return getProfile().UNION_OF();
098: }
099:
100: public String getOperatorName() {
101: return "UNION_OF";
102: }
103:
104: // Internal implementation methods
105: //////////////////////////////////
106:
107: //==============================================================================
108: // Inner class definitions
109: //==============================================================================
110:
111: }
112:
113: /*
114: (c) Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
115: All rights reserved.
116:
117: Redistribution and use in source and binary forms, with or without
118: modification, are permitted provided that the following conditions
119: are met:
120:
121: 1. Redistributions of source code must retain the above copyright
122: notice, this list of conditions and the following disclaimer.
123:
124: 2. Redistributions in binary form must reproduce the above copyright
125: notice, this list of conditions and the following disclaimer in the
126: documentation and/or other materials provided with the distribution.
127:
128: 3. The name of the author may not be used to endorse or promote products
129: derived from this software without specific prior written permission.
130:
131: THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
132: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
133: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
134: IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
135: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
136: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
137: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
138: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
139: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
140: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
141: */
|