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/* Copyright (C) 2013-2014 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.oracles;
import javax.annotation.Nonnull;
import javax.annotation.ParametersAreNonnullByDefault;
import net.automatalib.words.Word;
import de.learnlib.api.Query;
@ParametersAreNonnullByDefault
public abstract class AbstractQuery extends Query {
protected final Word prefix;
protected final Word suffix;
public AbstractQuery(Word prefix, Word suffix) {
this.prefix = prefix;
this.suffix = suffix;
}
public AbstractQuery(Word queryWord) {
this(Word.epsilon(), queryWord);
}
public AbstractQuery(Query query) {
this(query.getPrefix(), query.getSuffix());
}
@Override
@Nonnull
public Word getPrefix() {
return prefix;
}
@Override
@Nonnull
public Word getSuffix() {
return suffix;
}
/**
* Returns the string representation of this query, including a possible answer.
* This method should be used by classes extending {@link AbstractQuery} for their
* toString method to ensure output consistency.
*
* @return A string of the form {@code "Query[| / ]"}. If the query
* has not been answered yet, {@code } will be null.
*/
public String toStringWithAnswer(D answer) {
return "Query[" + prefix + '|' + suffix + " / " + answer + ']';
}
}