Change default polymorphism in Hibernate

Question

I would like to set a property polymorphism="explicit"for several sleep mapping classes. is it possible to override the default value implicitso that i don't need to set explicitto multiple classes?

<class name="xxxxx" table="XXXXX" polymorphism="explicit">

I use hibernate mapping of xml files (without annotations or JPA), and it was loaded by Spring as follows:

<bean id="xxxsessionFactory"   class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="dataSource">
        <ref bean="xxxDataSource"/>
    </property>
    <property name="mappingResources">
        <list>
            <value>xxx.hbm.xml</value>
            --------
            --------
        </list>
    </property>
    <property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.OracleDialect</prop>
            ----
            ----
        </props>
    </property>
</bean>

Thank.

Answer 1

Viewing hibernation sources, there seems to be no way around this limitation.

, -, , isExplicitPolymorphism(), , , org.hibernate.mapping.PersistentClass.isExplicitPolymorphism() . , , org.hibernate.mapping.RootClass.setExplicitPolymorphism(). org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues() ( XML) org.hibernate.cfg.annotations.EntityBinder.bindEntity() ( ).

ploymorphism=explicit .