Of course!
Its a FAQ item that assigned ids including composite ids can't distinguish
between a
saved or unsaved object (you have a choice between "always update" or
"always insert").
So if you want to add a new child (with unsaved-value="none"), simply save
() it
manually first:
child.setParent(parent);
parent.addChild(child);
session.save(child);
session.update(parent);
None of these things are issues if you use synthetic ids, as is best
practice for all
sorts of other reasons (see Scott Ambler's paper).
"Raible, Matt"
<[EMAIL PROTECTED]> To: "'[EMAIL PROTECTED]'"
Sent by: <[EMAIL PROTECTED]>
[EMAIL PROTECTED] cc:
eforge.net Subject: [Hibernate]
composite-id still doesn't work for me...
23/01/03 05:10 AM
I just did a fresh checkout from CVS and updated my hibernate version. I
can still retrieve data (and children) just fine, but not save it.
I noticed now that <composite-id>'s "unsaved-value" only allows "any" and
"none" - however, neither of these work for me:
<composite-id name="id" unsaved-value="none"
class="com.comcast.cable.dmc.itd.cct.persistence.CCRChildId">
<key-property column="CCR_ID" name="ccrId" type="long"/>
<key-property column="RECORD_NUM" name="recordNum" type
="long"/>
</composite-id>
results in:
[junit] WARN [main] JDBCExceptionReporter.logExceptions(35) | SQL
Error:
1407, SQLState: 72000
[junit] ERROR [main] JDBCExceptionReporter.logExceptions(42) |
ORA-01407: cannot update ("CCTADM
IN"."CMCF_MPS"."CCR_ID") to NULL
If I set unsaved-value="any", then I get:
[junit] WARN [main] JDBCExceptionReporter.logExceptions(35) | SQL
Error:
1, SQLState: 23000
[junit] ERROR [main] JDBCExceptionReporter.logExceptions(42) |
ORA-00001: unique constraint (CCT
ADMIN.CMCF_MPS_PK) violated
My <bag> mapping to this class is:
<bag role="mpsList" table="CMCF_MPS" cascade="all"
order-by="record_num">
<key column="CCR_ID"/>
<one-to-many
class="com.comcast.cable.dmc.itd.cct.persistence.CMCFMps"/>
</bag>
I guess I'll remove my "bag" mappings and populate my child object manually
as this obviously isn't working for me ;-)
Thanks,
Matt
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