<?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">

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 * 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.
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 -->
<hibernate-mapping package="org.unitime.timetable.model">
    <class name="StudentSectioningPref" table="sect_pref" abstract="true" discriminator-value="-1">
        <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">pref_group_seq</param>
            </generator>
        </id>

        <discriminator column="preference_type" type="java.lang.Integer"/>
        
        <property
            name="label"
            column="label"
            type="string"
            not-null="false"
            length="60"/>
        
        <many-to-one
            name="courseRequest"
            class="CourseRequest"
            column="request_id"
            not-null="true"
            foreign-key="fk_sct_pref_request"/>

        <property
            name="required"
            column="required"
            type="java.lang.Boolean"
            not-null="true"/>

        <subclass
            name="StudentClassPref"
            abstract="false"
            discriminator-value="0">
            
            <many-to-one
                name="clazz"
                class="Class_"
                column="class_id"
                not-null="true"
                foreign-key="fk_sct_pref_class"/>
	    </subclass>
	    
        <subclass
            name="StudentInstrMthPref"
            abstract="false"
            discriminator-value="1">
            
            <many-to-one
                name="instructionalMethod"
                class="InstructionalMethod"
                column="instr_mthd_id"
                not-null="true"
                foreign-key="fk_sct_pref_im"/>
	    </subclass>
    </class>
</hibernate-mapping>