net.automatalib.util.automata.ads.SplitTreeResult Maven / Gradle / Ivy
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This artifact provides various common utility operations for analyzing and manipulating
automata and graphs, such as traversal, minimization and copying.
/* Copyright (C) 2013-2019 TU Dortmund
* This file is part of AutomataLib, http://www.automatalib.net/.
*
* 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.
*/
package net.automatalib.util.automata.ads;
import java.util.Collections;
import java.util.Optional;
import java.util.Set;
/**
* Utility class used by the algorithm of {@link LeeYannakakis}.
*
* @param
* (hypothesis) state type
* @param
* input alphabet type
* @param
* output alphabet type
*
* @author frohme
*/
class SplitTreeResult {
private final Optional> delegate;
private final Set indistinguishableStates;
SplitTreeResult(final SplitTree result) {
this.delegate = Optional.of(result);
this.indistinguishableStates = Collections.emptySet();
}
SplitTreeResult(final Set indistinguishableStates) {
this.delegate = Optional.empty();
this.indistinguishableStates = indistinguishableStates;
}
SplitTreeResult() {
this.delegate = Optional.empty();
this.indistinguishableStates = Collections.emptySet();
}
public boolean isPresent() {
return this.delegate.isPresent();
}
public SplitTree get() {
return this.delegate.get();
}
public Set getIndistinguishableStates() {
return this.indistinguishableStates;
}
}