How to get Hibernate to cascade save/update to collection?

bonnyr · **Posted:** Tue Mar 29, 2005 2:21 am

Hibernate version: 3.0rc1

How can I get Hibernate to persist entries in the objectMap below?
It seems that the cascade operation will not be performed if the
element type is not of an Entity/Component/Any type.

The mapping fragment below shows the mapping I use.

Mapping documents:

Code:

<class name="Project">
        <id/>
...
        <map name="objectMap"
             lazy="true"
             inverse="true"
             table="PROJ_OBJS"
             cascade="all,delete-orphan">
            <key column="PROJECT_ID"/>
            <index-many-to-any id-type="int">
                <column name="OBJ_REF_TYPE" length="100"/>
                <column name="OBJ_REF_ID"/>
            </index-many-to-any>
            <element type="int" column="OBJ_COUNT" />
        </map>
</class>

Any idea how to get Hibernate to cascade the save/update and insertion
of collection elements?

shl · **Posted:** Tue Mar 29, 2005 9:02 am

Try with inverse="false" for objectMap

nickvajberg · **Joined:** Tue Oct 21, 2003 8:15 am **Posts:** 186

The "inverse" term confused the hell out of me for weeks. I think a better term should be choosen, as well as better explanations in the docs - this is really essential stuff.

bonnyr · **Posted:** Tue Mar 29, 2005 6:28 pm

shl wrote:

Try with inverse="false" for objectMap

Thanks!

I've tried this before, but must have had other problems with my mapping so it did not work.

shl · **Posted:** Wed Mar 30, 2005 4:56 am

nickvajberg wrote:

The "inverse" term confused the hell out of me for weeks. I think a better term should be choosen, as well as better explanations in the docs - this is really essential stuff.

About "inverse" exmplanation... There are the following docs in the Wiki area and in the reference documentation.

In the wiki area http://www.hibernate.org/Documentation/InsideExplanationOfInverseTrue
"Chapter 21. Example: Parent/Child" exmplains inverse too http://www.hibernate.org/hib_docs/v3/reference/en/html/example-parentchild.html

jasonab · **Joined:** Fri May 06, 2005 2:37 pm **Posts:** 39

Why don't cascades solve this problem? It would seem that, if I set cascade="all", then I could save the inverse side, and when the save gets to the non-inverse object (via cascade), the relationship would get saved then.

Does the cascade somehow not touch relationships?

joel · **Posted:** Wed Oct 19, 2005 10:16 am

I was just wondering why the link to the wiki wasn't working anymore (the one from shl's last post)
It would have helped me, I think. Was the target moved, renamed, deleted ?

Thank you,
Joel.

shl · **Posted:** Thu Oct 20, 2005 3:54 am

joel wrote:

I was just wondering why the link to the wiki wasn't working anymore (the one from shl's last post)

Joel,

It looks like they removed this page from the Wiki. Maybe it become obsolete or removed accidentally. And Joel, there are still explanations in "Chapter 22. Example: Parent/Child"

Hibernate Team! Where is the wiki page explaning "Inverse True"? I cannot find it in the Wiki "List Directory". It used to have the following link: http://www.hibernate.org/Documentation/ ... nverseTrue