/*
 * 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.examples.examination.domain;

import org.optaplanner.core.api.domain.entity.PlanningEntity;
import org.optaplanner.core.api.domain.variable.CustomShadowVariable;
import org.optaplanner.core.api.domain.variable.PlanningVariableReference;
import org.optaplanner.examples.examination.domain.solver.PeriodUpdatingVariableListener;

import com.thoughtworks.xstream.annotations.XStreamAlias;

@PlanningEntity
@XStreamAlias("FollowingExam")
public class FollowingExam extends Exam {

    protected LeadingExam leadingExam;

    // Shadow variables
    protected Period period;

    public LeadingExam getLeadingExam() {
        return leadingExam;
    }

    public void setLeadingExam(LeadingExam leadingExam) {
        this.leadingExam = leadingExam;
    }

    @Override
    @CustomShadowVariable(variableListenerClass = PeriodUpdatingVariableListener.class, sources = {
            @PlanningVariableReference(entityClass = LeadingExam.class, variableName = "period") })
    public Period getPeriod() {
        return period;
    }

    public void setPeriod(Period period) {
        this.period = period;
    }

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

}
