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Utilities to present tracing results (encoded proofs) to the
user
/*
* #%L
* ELK Proofs Package
* $Id:$
* $HeadURL:$
* %%
* 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
*
* 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
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package org.semanticweb.elk.owl.inferences;
import java.util.Arrays;
import java.util.List;
import org.semanticweb.elk.owl.interfaces.ElkAxiom;
import org.semanticweb.elk.owl.interfaces.ElkClassExpression;
import org.semanticweb.elk.owl.interfaces.ElkDisjointClassesAxiom;
import org.semanticweb.elk.owl.interfaces.ElkObject;
/**
* Represents the inference:
*
*
* (1) (2) ((n*(n+1)/2)-1) (n*(n+1)/2)
* C0 ⊓ C1 ⊑ ⊥ C0 ⊓ C2 ⊑ ⊥ ... Cn-2 ⊓ Cn ⊑ ⊥ Cn-1 ⊓ Cn ⊑ ⊥
* ⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯
* DisjointClasses(C0 C1 ... Cn)
*
*
* @author Peter Skocovsky
*/
public class ElkDisjointClassesIntersectionInconsistencies
extends AbstractElkInference {
public final static String NAME = "Disjoint Classes Introduction";
private final List extends ElkClassExpression> expressions_;
ElkDisjointClassesIntersectionInconsistencies(
final List extends ElkClassExpression> expressions) {
this.expressions_ = expressions;
}
ElkDisjointClassesIntersectionInconsistencies(
final ElkClassExpression... expressions) {
this(Arrays.asList(expressions));
}
public List extends ElkClassExpression> getExpressions() {
return expressions_;
}
@Override
public String getName() {
return NAME;
}
@Override
public int getPremiseCount() {
final int size = expressions_.size();
return ((size - 1) * size) / 2;
}
@Override
public ElkAxiom getPremise(final int index,
final ElkObject.Factory factory) {
checkPremiseIndex(index);
final int size = expressions_.size();
int sum = size - 1;
int i = sum - 1;
while (index >= sum) {
sum += i;
i--;
}
final int firstIndex = size - i - 2;
final int secondIndex = size - (sum - index);
return factory.getSubClassOfAxiom(
factory.getObjectIntersectionOf(expressions_.get(firstIndex),
expressions_.get(secondIndex)),
factory.getOwlNothing());
}
@Override
public ElkDisjointClassesAxiom getConclusion(
final ElkObject.Factory factory) {
return factory.getDisjointClassesAxiom(expressions_);
}
@Override
public O accept(final ElkInference.Visitor visitor) {
return visitor.visit(this);
}
/**
* A factory for creating instances
*
* @author Peter Skocovsky
*/
public interface Factory {
ElkDisjointClassesIntersectionInconsistencies getElkDisjointClassesIntersectionInconsistencies(
List extends ElkClassExpression> expressions);
ElkDisjointClassesIntersectionInconsistencies getElkDisjointClassesIntersectionInconsistencies(
ElkClassExpression... expressions);
}
/**
* The visitor pattern for instances
*
* @author Peter Skocovsky
*
* @param
* the type of the output
*/
interface Visitor {
O visit(ElkDisjointClassesIntersectionInconsistencies inference);
}
}
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