/*
 * Copyright 2021 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.score.inliner;

import java.util.List;
import java.util.function.Supplier;

/**
 * This interface allows to create justifications lazily
 * if and only if constraint matches are enabled.
 *
 * Justifications creation is performance expensive and constraint matches are typically disabled.
 * So justifications are created lazily, outside of the typical hot path.
 */
@FunctionalInterface
public interface JustificationsSupplier extends Supplier<List<Object>> {
}
