<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<!-- 
 * Licensed to The Apereo Foundation under one or more contributor license
 * agreements. See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.
 *
 * The Apereo Foundation licenses this file to you 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.
 * 
 -->
<hibernate-mapping package="org.unitime.timetable.model">
    <class name="Assignment" table="assignment">
        <cache include="non-lazy" usage="transactional"/>
        <id
            name="uniqueId"
            column="uniqueid"
            type="java.lang.Long">
            <generator class="org.unitime.commons.hibernate.id.UniqueIdGenerator">
                <param name="sequence">assignment_seq</param>
            </generator>
        </id>

        <property
            name="days"
            column="days"
            type="java.lang.Integer"
            not-null="false"
            length="4"/>

        <property
            name="startSlot"
            column="slot"
            type="java.lang.Integer"
            not-null="false"
            length="4"/>

        <property
            name="className"
            column="class_name"
            type="java.lang.String"
            not-null="false"
            length="100"/>

        <many-to-one
            name="timePattern"
            class="TimePattern"
            column="time_pattern_id"
            not-null="true"
            foreign-key="fk_assignment_time_pattern"/>

        <many-to-one
            name="datePattern"
            class="DatePattern"
            column="date_pattern_id"
            not-null="true"
            foreign-key="fk_assignment_date_pattern"/>

        <many-to-one
            name="solution"
            class="Solution"
            column="solution_id"
            not-null="true"
            foreign-key="fk_assignment_solution"/>

        <set
            name="instructors"
            lazy="true"
            table="assigned_instructors">
            <cache include="non-lazy" usage="transactional"/>
            <key column="assignment_id"/>
            <many-to-many
                class="DepartmentalInstructor"
                column="instructor_id"
                foreign-key="fk_assigned_instructor"/>

        </set>

        <set
            name="rooms"
            lazy="false"
            table="assigned_rooms">
            <cache include="non-lazy" usage="transactional"/>
            <key column="assignment_id"/>
            <many-to-many class="Location" column="room_id"/>
        </set>

        <many-to-one
            name="clazz"
            class="Class_"
            column="class_id"
            lazy="false"
            not-null="true"
            foreign-key="fk_assignment_class"/>

        <set
            name="assignmentInfo"
            inverse="true"
            cascade="all"
            lazy="true"
            table="solver_info">

            <cache include="non-lazy" usage="transactional"/>
            <key column="assignment_id"/>
            <one-to-many class="AssignmentInfo"/>
        </set>

        <set
            name="constraintInfo"
            inverse="true"
            lazy="true"
            cascade="delete-orphan"
            table="constraint_info">

            <cache include="non-lazy" usage="transactional"/>
            <key column="assignment_id"/>
            <many-to-many
                class="ConstraintInfo"
                column="solver_info_id"
                foreign-key="fk_constraint_info_solver"/>

        </set>

    </class>
</hibernate-mapping>