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 08-May-2003
009: * Filename $RCSfile: CardinalityRestrictionImpl.java,v $
010: * Revision $Revision: 1.9 $
011: * Release status $State: Exp $
012: *
013: * Last modified on $Date: 2008/01/02 12:08:01 $
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.*;
024: import com.hp.hpl.jena.ontology.*;
025:
026: /**
027: * <p>
028: * Implementation of the cardinality restriction abstraction.
029: * </p>
030: *
031: * @author Ian Dickinson, HP Labs
032: * (<a href="mailto:Ian.Dickinson@hp.com" >email</a>)
033: * @version CVS $Id: CardinalityRestrictionImpl.java,v 1.9 2008/01/02 12:08:01 andy_seaborne Exp $
034: */
035: public class CardinalityRestrictionImpl extends RestrictionImpl
036: implements CardinalityRestriction {
037: // Constants
038: //////////////////////////////////
039:
040: // Static variables
041: //////////////////////////////////
042:
043: /**
044: * A factory for generating CardinalityRestriction facets from nodes in enhanced graphs.
045: * Note: should not be invoked directly by user code: use
046: * {@link com.hp.hpl.jena.rdf.model.RDFNode#as as()} instead.
047: */
048: public static Implementation factory = new Implementation() {
049: public EnhNode wrap(Node n, EnhGraph eg) {
050: if (canWrap(n, eg)) {
051: return new CardinalityRestrictionImpl(n, eg);
052: } else {
053: throw new ConversionException("Cannot convert node "
054: + n + " to CardinalityRestriction");
055: }
056: }
057:
058: public boolean canWrap(Node node, EnhGraph eg) {
059: // node will support being a CardinalityRestriction facet if it has rdf:type owl:Restriction or equivalent
060: // and the combination of owl:onProperty and owl:cardinality (or equivalents)
061: Profile profile = (eg instanceof OntModel) ? ((OntModel) eg)
062: .getProfile()
063: : null;
064: return (profile != null)
065: && profile.isSupported(node, eg,
066: CardinalityRestriction.class);
067: }
068: };
069:
070: // Instance variables
071: //////////////////////////////////
072:
073: // Constructors
074: //////////////////////////////////
075:
076: /**
077: * <p>
078: * Construct a cardinality restriction node represented by the given node in the given graph.
079: * </p>
080: *
081: * @param n The node that represents the resource
082: * @param g The enh graph that contains n
083: */
084: public CardinalityRestrictionImpl(Node n, EnhGraph g) {
085: super (n, g);
086: }
087:
088: // External signature methods
089: //////////////////////////////////
090:
091: // cardinality
092:
093: /**
094: * <p>Assert that this restriction restricts the property to have the given
095: * cardinality. Any existing statements for <code>cardinality</code>
096: * will be removed.</p>
097: * @param cardinality The cardinality of the restricted property
098: * @exception OntProfileException If the {@link Profile#CARDINALITY()} property is not supported in the current language profile.
099: */
100: public void setCardinality(int cardinality) {
101: setPropertyValue(getProfile().CARDINALITY(), "CARDINALITY",
102: getModel().createTypedLiteral(cardinality));
103: }
104:
105: /**
106: * <p>Answer the cardinality of the restricted property.</p>
107: * @return The cardinality of the restricted property
108: * @exception OntProfileException If the {@link Profile#CARDINALITY()} property is not supported in the current language profile.
109: */
110: public int getCardinality() {
111: return objectAsInt(getProfile().CARDINALITY(), "CARDINALITY");
112: }
113:
114: /**
115: * <p>Answer true if this property restriction has the given cardinality.</p>
116: * @param cardinality The cardinality to test against
117: * @return True if the given cardinality is the cardinality of the restricted property in this restriction
118: * @exception OntProfileException If the {@link Profile#CARDINALITY()} property is not supported in the current language profile.
119: */
120: public boolean hasCardinality(int cardinality) {
121: return hasPropertyValue(getProfile().CARDINALITY(),
122: "CARDINALITY", getModel().createTypedLiteral(
123: cardinality));
124: }
125:
126: /**
127: * <p>Remove the statement that this restriction has the given cardinality
128: * for the restricted property. If this statement
129: * is not true of the current model, nothing happens.</p>
130: * @param cardinality A cardinality value to be removed from this restriction
131: */
132: public void removeCardinality(int cardinality) {
133: removePropertyValue(getProfile().CARDINALITY(), "CARDINALITY",
134: getModel().createTypedLiteral(cardinality));
135: }
136:
137: // Internal implementation methods
138: //////////////////////////////////
139:
140: //==============================================================================
141: // Inner class definitions
142: //==============================================================================
143:
144: }
145:
146: /*
147: (c) Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
148: All rights reserved.
149:
150: Redistribution and use in source and binary forms, with or without
151: modification, are permitted provided that the following conditions
152: are met:
153:
154: 1. Redistributions of source code must retain the above copyright
155: notice, this list of conditions and the following disclaimer.
156:
157: 2. Redistributions in binary form must reproduce the above copyright
158: notice, this list of conditions and the following disclaimer in the
159: documentation and/or other materials provided with the distribution.
160:
161: 3. The name of the author may not be used to endorse or promote products
162: derived from this software without specific prior written permission.
163:
164: THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
165: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
166: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
167: IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
168: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
169: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
170: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
171: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
172: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
173: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
174: */
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