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/* Copyright (C) 2015 TU Dortmund
* This file is part of LearnLib, http://www.learnlib.de/.
*
* 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 de.learnlib.api;
import java.util.Collection;
import javax.annotation.ParametersAreNonnullByDefault;
import net.automatalib.words.Word;
import de.learnlib.oracles.MQUtil;
/**
* Base interface for oracles whose semantic is defined in terms of directly answering single queries
* (like a {@link QueryAnswerer}, and that cannot profit from batch processing of queries.
*
* Implementing this class instead of directly implementing {@link MembershipOracle} means that
* the {@link #answerQuery(Word, Word)} instead of the {@link #processQueries(Collection)} method
* needs to be implemented.
*
* @author Malte Isberner
*
* @param input symbol type
* @param output domain type
*/
@ParametersAreNonnullByDefault
public interface SingleQueryOracle extends MembershipOracle {
public static interface SingleQueryOracleDFA
extends SingleQueryOracle, DFAMembershipOracle {}
public static interface SingleQueryOracleMealy
extends SingleQueryOracle>, MealyMembershipOracle {}
@Override
default public void processQueries(Collection> queries) {
MQUtil.answerQueriesAuto(this, queries);
}
@Override
default public void processQuery(Query query) {
D output = answerQuery(query.getPrefix(), query.getSuffix());
query.answer(output);
}
@Override
public abstract D answerQuery(Word prefix, Word suffix);
}