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• InstanceTaxonomy.java

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org.semanticweb.elk.reasoner.taxonomy.model.InstanceTaxonomy Maven / Gradle / Ivy

/*
 * #%L
 * ELK Reasoner
 * 
 * $Id$
 * $HeadURL$
 * %%
 * Copyright (C) 2011 - 2012 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%
 */
package org.semanticweb.elk.reasoner.taxonomy.model;

import java.util.Set;

import org.semanticweb.elk.owl.interfaces.ElkObject;

/**
 * Extended {@link Taxonomy} that also provides instances for each of its
 * members.
 * 
 * @author Markus Kroetzsch
 * @author "Yevgeny Kazakov"
 * 
 * @param 
 *            the type of objects in the nodes of this taxonomy
 * @param 
 *            the type of instances of nodes of this taxonomy
 */
public interface InstanceTaxonomy
		extends Taxonomy {

	/**
	 * @param elkObject
	 *            {@link ElkObject} for which the {@link TypeNode} to be
	 *            computed
	 * @return the {@link TypeNode} containing the given {@link ElkObject} as a
	 *         member, or {@code null} if the input does not occur in the
	 *         taxonomy
	 */
	public TypeNode getTypeNode(T elkObject);

	/**
	 * Obtain an unmodifiable Set of all type nodes in this taxonomy.
	 * 
	 * @return an unmodifiable Set
	 */
	public Set> getTypeNodes();

	/**
	 * @param elkObject
	 *            {@link ElkObject} for which the {@link InstanceNode} to be
	 *            computed
	 * @return the {@link InstanceNode} containing the given {@link ElkObject}
	 *         as a member, or {@code null} if the input does not occur in the
	 *         taxonomy
	 */
	public InstanceNode getInstanceNode(I elkObject);

	/**
	 * Obtain an unmodifiable Set of all instance nodes in this taxonomy.
	 * 
	 * @return an unmodifiable Set
	 */
	public Set> getInstanceNodes();

	@Override
	public TypeNode getTopNode();

	@Override
	public TypeNode getBottomNode();

}