/*
* Copyright 2014 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.config.exhaustivesearch;
import java.util.Comparator;
import org.optaplanner.core.impl.exhaustivesearch.node.ExhaustiveSearchNode;
import org.optaplanner.core.impl.exhaustivesearch.node.comparator.BreadthFirstNodeComparator;
import org.optaplanner.core.impl.exhaustivesearch.node.comparator.DepthFirstNodeComparator;
import org.optaplanner.core.impl.exhaustivesearch.node.comparator.OptimisticBoundFirstNodeComparator;
import org.optaplanner.core.impl.exhaustivesearch.node.comparator.OriginalOrderNodeComparator;
import org.optaplanner.core.impl.exhaustivesearch.node.comparator.ScoreFirstNodeComparator;
public enum NodeExplorationType {
ORIGINAL_ORDER,
DEPTH_FIRST,
BREADTH_FIRST,
SCORE_FIRST,
OPTIMISTIC_BOUND_FIRST;
public Comparator<ExhaustiveSearchNode> buildNodeComparator(boolean scoreBounderEnabled) {
switch (this) {
case ORIGINAL_ORDER:
return new OriginalOrderNodeComparator();
case DEPTH_FIRST:
return new DepthFirstNodeComparator(scoreBounderEnabled);
case BREADTH_FIRST:
return new BreadthFirstNodeComparator(scoreBounderEnabled);
case SCORE_FIRST:
return new ScoreFirstNodeComparator(scoreBounderEnabled);
case OPTIMISTIC_BOUND_FIRST:
return new OptimisticBoundFirstNodeComparator(scoreBounderEnabled);
default:
throw new IllegalStateException("The nodeExplorationType ("
+ this + ") is not implemented.");
}
}
}