reversing, jpa, and custom types??

memelet · **Joined:** Fri Aug 27, 2004 1:59 pm **Posts:** 33

I am reversing some classes from tables using JPA annotations. But a few of the columns I need to map into custom types (ie, joda-time). When I add a hibernate-mapping file with the entity specifying only the id and the column with the type mapping, I get some weird errors.

I'm suspecting that the hibernate-mapping is completely overriding some aspects of the annotations as opposed to extending. Can just a few properties of an @Column be overriden? Is there any way to achieve this?

Code:

<hibernate-mapping>

    <class name="com.foliofn.inteliclear.entities.IcCustProfile">
        <id name="id" />
        <property type="org.joda.time.contrib.hibernate.PersistentLocalDate" name="dob"/>
    </class>

</hibernate-mapping>

Code:

@Entity
@Table(name = "cust_profile", uniqueConstraints = { @UniqueConstraint(columnNames = { "acct_no",
        "corr", "office" }) })
public class IcCustProfile implements java.io.Serializable {
    ...
    @Column(name = "dob", unique = false, nullable = true, insertable = true, updatable = true, length = 16)
    public LocalDate getDob() {
        return this.dob;
    }
    ...
}

max · **Posted:** Wed Sep 20, 2006 10:42 am

that is more a JPA/ejb3 question than a tooling question.

post over in the relevant forum.

(p.s. yes, a hbm.xml overrides any annotations and vice versa. to have overriding use the jpa orm.xml format...even though i think that is also per class)

memelet · **Joined:** Fri Aug 27, 2004 1:59 pm **Posts:** 33

Well, I don't need for these to reversed as JPA, since hibernate JPA will happily work with regular hibernate mapping files. So I would be happy to be able to specify such that the custom the type in the reversed into the generated hbm.xml file

eg:

Code:

<property name="priority">
    <type name="com.mycompany.usertypes.DefaultValueIntegerType">
        <param name="default">0</param>
    </type>
</property>

max · **Posted:** Wed Sep 20, 2006 11:51 am

well you can enter any type in the typemapping and column mapping in reveng.xml.

type parameters isn't supported yet though.

memelet · **Joined:** Fri Aug 27, 2004 1:59 pm **Posts:** 33

Ok, that's what it looked like. Because if I enter a user type the user type gets used in the reversed pojo, not the actual type that that user type is supporting. And I can't use an additional mapping file because I then get DuplicateMappingException. I guess I'll have to subclass the reversed pojos and add the type annotations manually for now.

thanks!

max · **Posted:** Wed Sep 20, 2006 12:19 pm

"if I enter a user type the user type gets used in the reversed pojo, not the actual type that that user type is supporting"

that only happens if the usertype is actually not on the classpath.

if it is not on the classpath we can't create it and ask what its returnedClass is.