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The core ELK Reasoner package
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/*-
 * #%L
 * ELK Reasoner Core
 * $Id:$
 * $HeadURL:$
 * %%
 * Copyright (C) 2011 - 2016 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
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 * 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.
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package org.semanticweb.elk.reasoner.entailments;

import org.semanticweb.elk.owl.interfaces.ElkAxiom;
import org.semanticweb.elk.reasoner.entailments.model.AxiomEntailment;
import org.semanticweb.elk.reasoner.entailments.model.ClassAssertionAxiomEntailment;
import org.semanticweb.elk.reasoner.entailments.model.DifferentIndividualsAxiomEntailment;
import org.semanticweb.elk.reasoner.entailments.model.DisjointClassesAxiomEntailment;
import org.semanticweb.elk.reasoner.entailments.model.Entailment;
import org.semanticweb.elk.reasoner.entailments.model.EquivalentClassesAxiomEntailment;
import org.semanticweb.elk.reasoner.entailments.model.ObjectPropertyAssertionAxiomEntailment;
import org.semanticweb.elk.reasoner.entailments.model.ObjectPropertyDomainAxiomEntailment;
import org.semanticweb.elk.reasoner.entailments.model.OntologyInconsistency;
import org.semanticweb.elk.reasoner.entailments.model.SameIndividualAxiomEntailment;
import org.semanticweb.elk.reasoner.entailments.model.SubClassOfAxiomEntailment;

public class DefaultEntailmentVisitor implements Entailment.Visitor {

	/**
	 * N-OP default visitor
	 * 
	 * @param entailment
	 *            the visited {@link Entailment}
	 * 
	 * @return {@code null}
	 */
	public O defaultVisit(final Entailment entailment) {
		return null;
	}

	public  O defaultAxiomEntailmentVisit(
			final AxiomEntailment axiomEntailment) {
		return defaultVisit(axiomEntailment);
	}

	@Override
	public O visit(
			final ClassAssertionAxiomEntailment classAssertionAxiomEntailment) {
		return defaultAxiomEntailmentVisit(classAssertionAxiomEntailment);
	}

	@Override
	public O visit(
			final DifferentIndividualsAxiomEntailment differentIndividualsEntailment) {
		return defaultAxiomEntailmentVisit(differentIndividualsEntailment);
	}

	@Override
	public O visit(
			final DisjointClassesAxiomEntailment disjointClassesAxiomEntailment) {
		return defaultAxiomEntailmentVisit(disjointClassesAxiomEntailment);
	}

	@Override
	public O visit(
			final EquivalentClassesAxiomEntailment equivalentClassesAxiomEntailment) {
		return defaultAxiomEntailmentVisit(equivalentClassesAxiomEntailment);
	}

	@Override
	public O visit(
			final ObjectPropertyAssertionAxiomEntailment objectPropertyAssertionAxiomEntailment) {
		return defaultAxiomEntailmentVisit(
				objectPropertyAssertionAxiomEntailment);
	}

	@Override
	public O visit(
			final ObjectPropertyDomainAxiomEntailment objectPropertyDomainAxiomEntailment) {
		return defaultAxiomEntailmentVisit(objectPropertyDomainAxiomEntailment);
	}

	@Override
	public O visit(final OntologyInconsistency inconsistentOntologyEntailment) {
		return defaultVisit(inconsistentOntologyEntailment);
	}

	@Override
	public O visit(
			final SameIndividualAxiomEntailment sameIndividualAxiomEntailment) {
		return defaultAxiomEntailmentVisit(sameIndividualAxiomEntailment);
	}

	@Override
	public O visit(final SubClassOfAxiomEntailment subClassOfAxiomEntailment) {
		return defaultAxiomEntailmentVisit(subClassOfAxiomEntailment);
	}

}
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