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ELK consequence-based reasoning engine
package org.semanticweb.elk.reasoner.taxonomy;
/*
* #%L
* ELK Reasoner
* $Id:$
* $HeadURL:$
* %%
* Copyright (C) 2011 - 2013 Department of Computer Science, University of Oxford
* %%
* 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.
* #L%
*/
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import org.semanticweb.elk.owl.interfaces.ElkObject;
import org.semanticweb.elk.reasoner.taxonomy.model.InstanceNode;
import org.semanticweb.elk.reasoner.taxonomy.model.InstanceTaxonomy;
import org.semanticweb.elk.reasoner.taxonomy.model.TypeNode;
import org.semanticweb.elk.util.collections.ArrayHashMap;
/**
* An {@link InstanceTaxonomy} consisting of a single {@link TypeNode} = top
* node = bottom node, which has a single {@link InstanceNode}. Typically, this
* is used to represent an inconsistent {@link InstanceTaxonomy}.
*
* @author "Yevgeny Kazakov"
*
* @param
* the type of objects stored in this taxonomy
* @param
* the type of instances of nodes of this taxonomy
* @param
* the type of the node of this taxonomy
*
* @author "Yevgeny Kazakov"
*/
public class SingletoneInstanceTaxonomy>
extends SingletoneTaxonomy implements InstanceTaxonomy {
final Map> instanceNodeLookup;
public SingletoneInstanceTaxonomy(N node) {
super(node);
this.instanceNodeLookup = new ArrayHashMap>(node
.getAllInstanceNodes().size());
for (InstanceNode instanceNode : node.getAllInstanceNodes()) {
for (I instance : instanceNode.getMembers()) {
instanceNodeLookup.put(instance, instanceNode);
}
}
}
@Override
public TypeNode getTopNode() {
return node;
}
@Override
public TypeNode getBottomNode() {
return node;
}
@Override
public TypeNode getTypeNode(T elkObject) {
if (node.getMembers().contains(elkObject))
return node;
else
return null;
}
@Override
public Set> getTypeNodes() {
return Collections.singleton(node);
}
@Override
public InstanceNode getInstanceNode(I elkObject) {
return instanceNodeLookup.get(elkObject);
}
@Override
public Set> getInstanceNodes() {
return node.instanceNodes;
}
}