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-Sep-2003
009: * Filename $RCSfile: QualifiedRestrictionImpl.java,v $
010: * Revision $Revision: 1.9 $
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 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
017: * [See end of file]
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.*;
026:
027: /**
028: * <p>
029: * Implementation of qualied restrictions.
030: * </p>
031: *
032: * @author Ian Dickinson, HP Labs
033: * (<a href="mailto:Ian.Dickinson@hp.com" >email</a>)
034: * @version CVS $Id: QualifiedRestrictionImpl.java,v 1.9 2008/01/02 12:08:02 andy_seaborne Exp $
035: */
036: public class QualifiedRestrictionImpl extends RestrictionImpl implements
037: QualifiedRestriction {
038: // Constants
039: //////////////////////////////////
040:
041: // Static variables
042: //////////////////////////////////
043:
044: /**
045: * A factory for generating QualifiedRestriction 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 QualifiedRestrictionImpl(n, eg);
053: } else {
054: throw new ConversionException("Cannot convert node "
055: + n + " to QualifiedRestriction");
056: }
057: }
058:
059: public boolean canWrap(Node node, EnhGraph eg) {
060: return isValidQualifiedRestriction(node, eg);
061: }
062: };
063:
064: private static boolean isValidQualifiedRestriction(Node node,
065: EnhGraph eg) {
066: // node will support being a QualifiedRestriction facet if it has rdf:type owl:Restriction or equivalent
067: Profile profile = (eg instanceof OntModel) ? ((OntModel) eg)
068: .getProfile() : null;
069: return (profile != null)
070: && profile.isSupported(node, eg,
071: QualifiedRestriction.class);
072: }
073:
074: public boolean isValid() {
075: return isValidQualifiedRestriction(asNode(), getGraph());
076: }
077:
078: // Instance variables
079: //////////////////////////////////
080:
081: // Constructors
082: //////////////////////////////////
083:
084: /**
085: * <p>
086: * Construct a qualified restriction node represented by the given node in the given graph.
087: * </p>
088: *
089: * @param n The node that represents the resource
090: * @param g The enh graph that contains n
091: */
092: public QualifiedRestrictionImpl(Node n, EnhGraph g) {
093: super (n, g);
094: }
095:
096: // External signature methods
097: //////////////////////////////////
098:
099: /**
100: * <p>Assert that this qualified restriction restricts the property to have a given
101: * cardinality and to have values belonging to the class denoted by <code>hasClassQ</code>.
102: * Any existing statements for <code>hasClassQ</code>
103: * will be removed.</p>
104: * @param cls The class to which all of the value of the restricted property must belong
105: * @exception OntProfileException If the {@link Profile#HAS_CLASS_Q()} property is not supported in the current language profile.
106: */
107: public void setHasClassQ(OntClass cls) {
108: setPropertyValue(getProfile().HAS_CLASS_Q(), "HAS_CLASS_Q", cls);
109: }
110:
111: /**
112: * <p>Answer the class or datarnage to which all values of the restricted property belong.</p>
113: * @return The ontology class of the restricted property values
114: * @exception OntProfileException If the {@link Profile#HAS_CLASS_Q()} property is not supported in the current language profile.
115: */
116: public OntResource getHasClassQ() {
117: checkProfile(getProfile().HAS_CLASS_Q(), "HAS_CLASS_Q");
118: Resource r = getProperty(getProfile().HAS_CLASS_Q())
119: .getResource();
120: if (r.canAs(OntClass.class)) {
121: return (OntClass) r.as(OntClass.class);
122: } else if (r.canAs(DataRange.class)) {
123: return (DataRange) r.as(DataRange.class);
124: } else {
125: return (OntResource) r.as(OntResource.class);
126: }
127: }
128:
129: /**
130: * <p>Answer true if this qualified property restriction has the given class as
131: * the class to which all of the property values must belong.</p>
132: * @param cls The class to test against
133: * @return True if the given class is the class to which all members of this restriction must belong
134: * @exception OntProfileException If the {@link Profile#HAS_CLASS_Q()} property is not supported in the current language profile.
135: */
136: public boolean hasHasClassQ(OntClass cls) {
137: return hasPropertyValue(getProfile().HAS_CLASS_Q(),
138: "HAS_CLASS_Q", cls);
139: }
140:
141: /**
142: * <p>Answer true if this qualified property restriction has the given datarange as
143: * the class to which all of the property values must belong.</p>
144: * @param dr The datarange to test against
145: * @return True if the given class is the class to which all members of this restriction must belong
146: * @exception OntProfileException If the {@link Profile#HAS_CLASS_Q()} property is not supported in the current language profile.
147: */
148: public boolean hasHasClassQ(DataRange dr) {
149: return hasPropertyValue(getProfile().HAS_CLASS_Q(),
150: "HAS_CLASS_Q", dr);
151: }
152:
153: /**
154: * <p>Remove the statement that this restriction has the given class
155: * as the class to which all values must belong. If this statement
156: * is not true of the current model, nothing happens.</p>
157: * @param cls The ont class that is the object of the <code>hasClassQ</code> property.
158: */
159: public void removeHasClassQ(OntClass cls) {
160: Property has_class_q = getProfile().HAS_CLASS_Q();
161: removePropertyValue(has_class_q, "HAS_CLASS_Q", cls);
162: }
163:
164: /**
165: * <p>Remove the statement that this restriction has the given datarange
166: * as the class to which all values must belong. If this statement
167: * is not true of the current model, nothing happens.</p>
168: * @param dr The datarange that is the object of the <code>hasClassQ</code> property.
169: */
170: public void removeHasClassQ(DataRange dr) {
171: removePropertyValue(getProfile().HAS_CLASS_Q(), "HAS_CLASS_Q",
172: dr);
173: }
174:
175: // Internal implementation methods
176: //////////////////////////////////
177:
178: //==============================================================================
179: // Inner class definitions
180: //==============================================================================
181:
182: }
183:
184: /*
185: * (c) Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
186: * All rights reserved.
187: *
188: * Redistribution and use in source and binary forms, with or without
189: * modification, are permitted provided that the following conditions
190: * are met:
191: * 1. Redistributions of source code must retain the above copyright
192: * notice, this list of conditions and the following disclaimer.
193: * 2. Redistributions in binary form must reproduce the above copyright
194: * notice, this list of conditions and the following disclaimer in the
195: * documentation and/or other materials provided with the distribution.
196: * 3. The name of the author may not be used to endorse or promote products
197: * derived from this software without specific prior written permission.
198: *
199: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
200: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
201: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
202: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
203: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
204: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
205: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
206: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
207: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
208: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
209: */
|