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ELK consequence-based reasoning engine

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/**
 * 
 */
package org.semanticweb.elk.reasoner.saturation;
/*
 * #%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 org.semanticweb.elk.reasoner.indexing.hierarchy.IndexedClassExpression;
import org.semanticweb.elk.reasoner.saturation.conclusions.Conclusion;
import org.semanticweb.elk.reasoner.saturation.context.Context;

/**
 * Functions that can write the saturation state are grouped here.
 * 
 * @author Pavel Klinov
 * 
 *         [email protected]
 */
public interface BasicSaturationStateWriter {

	public IndexedClassExpression getOwlThing();

	public IndexedClassExpression getOwlNothing();

	public Context pollForActiveContext();

	public void produce(Context context, Conclusion conclusion);

	public boolean markAsNotSaturated(Context context);

	public void clearNotSaturatedContexts();

	public void resetContexts();
}