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OptaPlanner solves planning problems. This lightweight, embeddable planning engine implements powerful and scalable algorithms to optimize business resource scheduling and planning. This module contains the examples which demonstrate how to use it in a normal Java application.

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/*
 * Copyright 2020 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.examples.nqueens.domain;

import java.util.List;

import org.optaplanner.core.api.domain.solution.PlanningEntityCollectionProperty;
import org.optaplanner.core.api.domain.solution.PlanningScore;
import org.optaplanner.core.api.domain.solution.PlanningSolution;
import org.optaplanner.core.api.domain.solution.ProblemFactCollectionProperty;
import org.optaplanner.core.api.domain.valuerange.ValueRangeProvider;
import org.optaplanner.core.api.score.buildin.simple.SimpleScore;
import org.optaplanner.examples.common.domain.AbstractPersistable;
import org.optaplanner.persistence.xstream.api.score.buildin.simple.SimpleScoreXStreamConverter;

import com.thoughtworks.xstream.annotations.XStreamAlias;
import com.thoughtworks.xstream.annotations.XStreamConverter;

@PlanningSolution
@XStreamAlias("NQueens")
public class NQueens extends AbstractPersistable {

    private int n;

    private List columnList;
    private List rowList;

    private List queenList;

    @XStreamConverter(SimpleScoreXStreamConverter.class)
    private SimpleScore score;

    public int getN() {
        return n;
    }

    public void setN(int n) {
        this.n = n;
    }

    @ProblemFactCollectionProperty
    public List getColumnList() {
        return columnList;
    }

    public void setColumnList(List columnList) {
        this.columnList = columnList;
    }

    @ValueRangeProvider(id = "rowRange")
    @ProblemFactCollectionProperty
    public List getRowList() {
        return rowList;
    }

    public void setRowList(List rowList) {
        this.rowList = rowList;
    }

    @PlanningEntityCollectionProperty
    public List getQueenList() {
        return queenList;
    }

    public void setQueenList(List queenList) {
        this.queenList = queenList;
    }

    @PlanningScore
    public SimpleScore getScore() {
        return score;
    }

    public void setScore(SimpleScore score) {
        this.score = score;
    }

    // ************************************************************************
    // Complex methods
    // ************************************************************************

}