I have an object Worker with a property avs corresponding to a join table "t_avs".
When I save my Worker object, a line is created in the "t_avs" table with no data in the fields as expected.
The problem is, when I retrieve a Worker object, Hibernate initializes to null the avs property when all the avs fields are null.
I think this is because if all the fields of a persistent object are null, the object itself is considered as null.
The solution I am thinking about is to add a property to my AVS object with a not null value so the avs property of my Worker object will never be considered as null.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<hibernate-mapping>
<subclass
name="bab.admin.model.persistent.Worker"
discriminator-value="worker"
extends="bab.admin.model.persistent.IParty" >
<!--<property
name="workedHours"
formula="( SELECT (HOUR(p.endDate)-HOUR(p.startDate)) FROM t_period p where p.periodId = periodId )" />-->
<!--<property name="workedJobs"
formula="( SELECT COUNT(mission.serviceWorkerId) FROM t_serviceworker mission
WHERE mission.partyId = partyId )" />-->
<set
name="specialities"
table="t_workerspeciality"
lazy="true"
cascade="save-update"
sort="unsorted" >
<key column="partyId"></key>
<many-to-many
class="bab.admin.model.persistent.Speciality"
column="specialityId"
outer-join="auto" />
</set>
<set
name="jobsWorker"
inverse="true" >
<key column="partyId" />
<one-to-many
class="bab.admin.model.persistent.JobWorker" />
</set>
<join table="t_avs">
<key column="partyId" />
<component name="avs">
<property name="cotise" column="cotiseYN" type="java.lang.Boolean"/>
<property name="number" column="avsNumber" />
<property name="requestDate" />
<property name="expeditionDate" />
<property name="receptionDate" />
</component>
</join>
<join table="t_person">
<key column="partyId" />
<property name="sex" />
<property name="title" />
<property name="maritalStatus" column="maritalStatusCode" />
<property name="birthdate" />
<property name="accountInfo" />
<component
name="fullname"
class="bab.admin.model.persistent.Fullname" >
<property name="firstname" />
<property name="lastname" />
</component>
</join>
<join table="t_worker">
<key column="partyId" />
<property name="enabled" type="java.lang.Boolean" update="true"
insert="true" access="property" column="enabledYN" not-null="false"
unique="false" />
<property name="critic" type="java.lang.String" update="true"
insert="true" access="property" column="critic" not-null="false"
unique="false" />
<property name="compliment" type="java.lang.String"
update="true" insert="true" access="property" column="compliment"
not-null="false" unique="false" />
<property name="motivationCode" type="java.lang.String"
update="true" insert="true" access="property" column="motivationCode"
not-null="true" unique="false" />
<property name="motivationShortCode" type="java.lang.String"
update="true" insert="true" access="property"
column="motivationShortCode" not-null="true" unique="false" />
<property name="affiliationDate" type="java.util.Date"
update="true" insert="true" access="property"
column="affiliationDate" not-null="true" unique="false" />
<property name="lastReactivationDate" type="java.util.Date"
update="true" insert="true" access="property"
column="lastReactivationDate" not-null="false" unique="false" />
<property name="workPermitCode" type="java.lang.String"
update="true" insert="true" access="property" column="workPermitCode"
not-null="true" unique="false" />
<property name="authorizationExpirationDate"
type="java.util.Date" update="true" insert="true" access="property"
column="authorizationExpirationDate" not-null="false" unique="false" />
<property name="source" type="java.lang.Boolean" update="true"
insert="true" access="property" column="sourceYN" not-null="false"
unique="false" />
<many-to-one
name="activity"
column="activityId" />
</join>
<join table="t_workerDisponibility" >
<key column="partyId" />
<component
name="disponibilities"
class="bab.admin.model.persistent.Disponibility" >
<property name="mondayMorning" column="mondayMorningYN" />
<property name="mondayAfternoon" column="mondayAfternoonYN" />
<property name="mondayNight" column="mondayNightYN" />
<property name="tuesdayMorning" column="tuesdayMorningYN" />
<property name="tuesdayAfternoon" column="tuesdayAfternoonYN" />
<property name="tuesdayNight" column="tuesdayNightYN" />
<property name="wednesdayMorning" column="wednesdayMorningYN" />
<property name="wednesdayAfternoon" column="wednesdayAfternoonYN" />
<property name="wednesdayNight" column="wednesdayNightYN" />
<property name="thursdayMorning" column="thursdayMorningYN" />
<property name="thursdayAfternoon" column="thursdayAfternoonYN" />
<property name="thursdayNight" column="thursdayNightYN" />
<property name="fridayMorning" column="fridayMorningYN" />
<property name="fridayAfternoon" column="fridayAfternoonYN" />
<property name="fridayNight" column="fridayNightYN" />
<property name="saturdayMorning" column="saturdayMorningYN" />
<property name="saturdayAfternoon" column="saturdayAfternoonYN" />
<property name="saturdayNight" column="saturdayNightYN" />
<property name="sundayMorning" column="sundayMorningYN" />
<property name="sundayAfternoon" column="sundayAfternoonYN" />
<property name="sundayNight" column="sundayNightYN" />
<property name="february" column="februaryYN" />
<property name="paques" column="paquesYN" />
<property name="summer" column="summerYN" />
<property name="autumn" column="autumnYN" />
<property name="noel" column="noelYN" />
<property name="jeunegenevois" column="jeunegenevoisYN" />
<property name="ascension" column="ascensionYN" />
<property name="pentecote" column="pentecoteYN" />
</component>
</join>
</subclass>
</hibernate-mapping>
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