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/*
* This file is part of the OWL API.
*
* The contents of this file are subject to the LGPL License, Version 3.0.
*
* Copyright (C) 2011, The University of Manchester
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
*
* Alternatively, the contents of this file may be used under the terms of the Apache License, Version 2.0
* in which case, the provisions of the Apache License Version 2.0 are applicable instead of those above.
*
* Copyright 2011, The University of Manchester
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.semanticweb.owlapi;/*
* Copyright (C) 2007, University of Manchester
*
* Modifications to the initial code base are copyright of their
* respective authors, or their employers as appropriate. Authorship
* of the modifications may be determined from the ChangeLog placed at
* the end of this file.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import org.semanticweb.owlapi.model.AddAxiom;
import org.semanticweb.owlapi.model.OWLClass;
import org.semanticweb.owlapi.model.OWLClassExpression;
import org.semanticweb.owlapi.model.OWLDataFactory;
import org.semanticweb.owlapi.model.OWLObjectProperty;
import org.semanticweb.owlapi.model.OWLOntology;
import org.semanticweb.owlapi.model.OWLOntologyChange;
/**
* This composite change will create a value partion - see "pattern 2" in
* "Representing Specified Values in OWL: "value partitions" and "value sets""
* (http:/** A value partition is an ontology design pattern which is used to
* represent a set of closed values for a particular property. For example the
* property hasSize might only take values from SmallSize, MediumSize and
* LargeSize. In this case, the value partition is Size, and has the values
* SmallSize, MediumSize and LargeSize. This composite change will set hasSize
* to be functional and its range as Size. Size will be covered by SmallSize,
* MediumSize and LargeSize and these classes which represent the values will be
* made disjoint with eachother.
*
* @author Matthew Horridge, The University Of Manchester, Bio-Health
* Informatics Group, Date: 23-Jul-2007
*/
public class CreateValuePartition extends AbstractCompositeOntologyChange {
private List changes;
private final OWLOntology targetOntology;
private final Set valuePartionClasses;
private final OWLClass valuePartitionClass;
private final OWLObjectProperty valuePartitionProperty;
/**
* Creates a composite change that will create a value partition.
*
* @param dataFactory
* A data factory which can be used to create the necessary axioms
* @param valuePartitionClass
* The class which represents the value partition.
* @param valuePartionClasses
* The classes that represent the various values of the value
* partition.
* @param valuePartitionProperty
* the property which should be used in conjunction with the value
* partition.
* @param targetOntology
* The target ontology which the axioms that are necessary to create
* the value partition will be added to.
*/
public CreateValuePartition(OWLDataFactory dataFactory,
OWLClass valuePartitionClass, Set valuePartionClasses,
OWLObjectProperty valuePartitionProperty, OWLOntology targetOntology) {
super(dataFactory);
this.targetOntology = targetOntology;
this.valuePartionClasses = valuePartionClasses;
this.valuePartitionClass = valuePartitionClass;
this.valuePartitionProperty = valuePartitionProperty;
generateChanges();
}
private void generateChanges() {
changes = new ArrayList();
// To create a value partition from a set of classes which represent the
// values,
// a value partition class, a property we...
// 1) Make the classes which represent the values, subclasses of the
// value partition class
for (OWLClassExpression valuePartitionValue : valuePartionClasses) {
changes.add(new AddAxiom(targetOntology, getDataFactory()
.getOWLSubClassOfAxiom(valuePartitionValue,
valuePartitionClass)));
}
// 2) Make the values disjoint
changes.add(new AddAxiom(targetOntology, getDataFactory()
.getOWLDisjointClassesAxiom(valuePartionClasses)));
// 3) Add a covering axiom to the value partition
OWLClassExpression union = getDataFactory().getOWLObjectUnionOf(
valuePartionClasses);
changes.add(new AddAxiom(targetOntology, getDataFactory()
.getOWLSubClassOfAxiom(valuePartitionClass, union)));
// 4) Make the property functional
changes.add(new AddAxiom(targetOntology, getDataFactory()
.getOWLFunctionalObjectPropertyAxiom(valuePartitionProperty)));
// 5) Set the range of the property to be the value partition
changes.add(new AddAxiom(targetOntology, getDataFactory()
.getOWLObjectPropertyRangeAxiom(valuePartitionProperty,
valuePartitionClass)));
}
@Override
public List getChanges() {
return changes;
}
}
