Can I update an object (an Long) in composite key??

iconst_0 · **Joined:** Mon Aug 08, 2005 4:53 pm **Posts:** 3

Can I update an object in a composite key??
Example:

Code:

<hibernate-mapping package="br.sapiensit.cadastrounico.programas.dao.hibernate.hbm">

    <class name="br.sapiensit.cadastrounico.programas.pojo.VinculoFamilia" table="TB_CDU_VINCULO_FAMILIA">
        <composite-id name="id" class="br.sapiensit.cadastrounico.programas.pojo.VinculoFamiliaKey">
            <key-many-to-one name="familia" column="CD_FAMILIA" class="br.sapiensit.cadastrounico.cadastrofamilias.pojo.Familia"/>
            <key-many-to-one name="programaMigracao" column="CD_PROGRAMA_MIGRACAO" class="br.sapiensit.cadastrounico.programas.pojo.ProgramaMigracao"/>
            <key-property name="codigoVinculoFamilia" column="CD_VINCULO_FAMILIA" type="java.lang.Long"/>
        </composite-id>
 
        <property name="flagVinculoValidado" column="FL_VINCULO_VALIDADO" type="java.lang.Short" />
 
        <many-to-one name="pessoa" column="CD_PESSOA" class="br.sapiensit.cadastrounico.cadastrofamilias.pojo.Pessoa" />
    </class>
    
</hibernate-mapping>

I would like to update the value of property codigoVinculoFamilia.
First I load the object:
someVinculoFamilia = session.load(someVinculoFamiliaKey);
someVinculoFamilia.getId().setCodigoVinculoFamilia(new Long(3));
session.update(someVinculoFamilia);

is this correct!?
Or should I delete the object and then insert!?!?

pksiv · **Posted:** Mon Aug 08, 2005 5:07 pm

iconst_0 wrote:

Can I update an object in a composite key??
Example:

Code:

<hibernate-mapping package="br.sapiensit.cadastrounico.programas.dao.hibernate.hbm">

    <class name="br.sapiensit.cadastrounico.programas.pojo.VinculoFamilia" table="TB_CDU_VINCULO_FAMILIA">
        <composite-id name="id" class="br.sapiensit.cadastrounico.programas.pojo.VinculoFamiliaKey">
            <key-many-to-one name="familia" column="CD_FAMILIA" class="br.sapiensit.cadastrounico.cadastrofamilias.pojo.Familia"/>
            <key-many-to-one name="programaMigracao" column="CD_PROGRAMA_MIGRACAO" class="br.sapiensit.cadastrounico.programas.pojo.ProgramaMigracao"/>
            <key-property name="codigoVinculoFamilia" column="CD_VINCULO_FAMILIA" type="java.lang.Long"/>
        </composite-id>
 
        <property name="flagVinculoValidado" column="FL_VINCULO_VALIDADO" type="java.lang.Short" />
 
        <many-to-one name="pessoa" column="CD_PESSOA" class="br.sapiensit.cadastrounico.cadastrofamilias.pojo.Pessoa" />
    </class>
    
</hibernate-mapping>

I would like to update the value of property codigoVinculoFamilia.
First I load the object:
someVinculoFamilia = session.load(someVinculoFamiliaKey);
someVinculoFamilia.getId().setCodigoVinculoFamilia(new Long(3));
session.update(someVinculoFamilia);

is this correct!?
Or should I delete the object and then insert!?!?

I'm reasonably sure an update would fail - since it would try and update using the new value for that property - so you should delete the old key and insert the new key.