FixedTabuSizeStrategy.java

/*
 * Copyright 2013 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.optaplanner.core.impl.localsearch.decider.acceptor.tabu.size;

import org.optaplanner.core.impl.localsearch.scope.LocalSearchStepScope;

public class FixedTabuSizeStrategy extends AbstractTabuSizeStrategy {

    protected final int tabuSize;

    public FixedTabuSizeStrategy(int tabuSize) {
        this.tabuSize = tabuSize;
        if (tabuSize < 0) {
            throw new IllegalArgumentException("The tabuSize (" + tabuSize
                    + ") cannot be negative.");
        }
    }

    @Override
    public int determineTabuSize(LocalSearchStepScope stepScope) {
        return tabuSize;
    }

}