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/*
 * #%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.impl;

import java.util.Set;

import org.semanticweb.elk.owl.interfaces.ElkEntity;
import org.semanticweb.elk.reasoner.taxonomy.model.GenericInstanceNode;
import org.semanticweb.elk.reasoner.taxonomy.model.GenericTypeNode;
import org.semanticweb.elk.reasoner.taxonomy.model.InstanceNode;

/**
 * Updateable generic instance node that can be associated with nodes of types
 * of its instances.
 * 
 * @author Pavel Klinov
 *
 *         [email protected]
 * @author Peter Skocovsky
 *
 * @param 
 *            The type of members of associated type nodes.
 * @param 
 *            The type of members of this nodes.
 * @param 
 *            The immutable type of type nodes with which this node may be
 *            associated.
 * @param 
 *            The immutable type of instance nodes with which this node may be
 *            associated.
 * @param 
 *            The mutable type of type nodes with which this node may be
 *            associated.
 * @param 
 *            The mutable type of instance nodes with which this node may be
 *            associated.
 */
public interface UpdateableInstanceNode<
				T extends ElkEntity,
				I extends ElkEntity,
				TN extends GenericTypeNode,
				IN extends GenericInstanceNode,
				UTN extends UpdateableTypeNode,
				UIN extends UpdateableInstanceNode
		>
		extends UpdateableNode, InstanceNode {

	/**
	 * Returns an immutable set of all direct type nodes without the bottom
	 * node.
	 * 
	 * @return an immutable set of all direct type nodes without the bottom
	 * node.
	 */
	Set getDirectNonBottomTypeNodes();
	
	/**
	 * Associates this node with its direct type node.
	 * 
	 * @param typeNode
	 *            The type node with which this node should be associated.
	 */
	void addDirectTypeNode(UTN typeNode);

	/**
	 * Deletes the association between this node and the specified type node.
	 * 
	 * @param typeNode
	 *            The type node with which this node should not be associated.
	 */
	void removeDirectTypeNode(UTN typeNode);

	/**
	 * A subinterface with fixed type parameters.
	 * 
	 * @author Peter Skocovsky
	 *
	 * @param 
	 *            The type of members of associated type nodes.
	 * @param 
	 *            The type of members of this nodes.
	 */
	public static interface Projection
			extends UpdateableInstanceNode<
					T,
					I,
					GenericTypeNode.Projection,
					GenericInstanceNode.Projection,
					UpdateableTypeNode.Projection,
					Projection
			>, GenericInstanceNode.Projection	{
		// Empty.
	}
	
}