Ralf Bode wrote:
Hi Armin, thanks for your patience, first! but the things with declaring PK_Fields i read at: http://db.apache.org/ojb/howto-use-anonymous-keys.html i did everything like told me :-) the document is written nice and understandful,
doh! Assume the current implementation doesn't achieve this. All anonymous keys are held in an internal map using the object itself as key. Reading will be successful, but when the object e.g. will be serialized and then returned to OJB the anonymous PK field will never be found (object does not match a key), its only possible to extract the FK from the associated reference object.
Thus I think anonymous keys will only work in conjunction with 1:1 references.
I don't write the 'anonymous-key' stuff, so maybe I overlooked an important argument.
regards, Armin
but only the little thing froeign-key is null in my case...
did you know if this sample is available? i didnīt found it in src-distribution.
thanks alot!
--- Armin Waibel <[EMAIL PROTECTED]> schrieb: > Hi Ralf,
=== message truncated ===> but in my case the own idīs > of a class where anonymous too, > is that the matter?
AFAIK we don't have a test case that mix this stuff.
Think it is not allowed to declare a PK field
anonymous.
Recommend you to setup a test case similar to the
examples in test suite or docu
(http://db.apache.org/ojb/tutorial3.html#Mapping 1:1
associations). As recently as your test pass start to tweak ;-)
regards, Armin
Ralf Bode wrote:
Hi Armin, again... ...sorry...
i looked in samples you told me! (thanks for tipps!) but i have all so like 1:1-relationship org.apache.ojb.broker.ObjectRepository$Group org.apache.ojb.broker.ObjectRepository$Componente (access="anonymous" for reffered ids) but in my case the own idīs of a class where anonymous too, is that the matter? but i donīt think so, because for car and customer a id is "generated".
But only!!! the reffered id (in customer for car is "null")
...strangely... isnīt it ?
perhaps i can send it to list / to you? (i asked, because i will not blow up list with my (i think) foolishness)
thanks for your patience! ralf --- Armin Waibel <[EMAIL PROTECTED]> schrieb: >
Hi
Ralf,
Ralf Bode wrote:
hi ... again :-(
it is really frustratingly... i turned OTM->true made: customer.setCar(car) broker.store(customer);
I don't know what's wrong with your test, but this
will definitely work with the PB-api.
You can find many examples in test suite, e.g. ...broker.AnonymousFieldsTest.
regards, Armin
but same... customer is in DB, car not! :-(
i have read in aritcle in german-javamag on OJB there was said "all is nice"
or am i to stuid?
i though it would be possible to store "customer" and his car... has anyone a "runnig"-case for an idot, like me?
thanks!
--- Brian McCallister <[EMAIL PROTECTED]> schrieb: >
Objects
are not automatically stored by reachability
-- the car isn't inserted because it is attached to Customer.
This
*can* actually be done in the OTM if Car is a truly dependent
object
(otm-dependent attribute), but in the PB an object must be made
explicitly persistent.
broker.store(ca); broker.store(cu);
-Brian
On Feb 2, 2004, at 3:13 PM, Ralf Bode wrote:
Hi Brian, now i got an "anonym" id (very nice, so i now have "pure" javaBeans no technicals in it :-)
i made cu = new Custiomer(); ca = new Car(); cu.setCar(ca); broker.store(cu);
now only a customer was in DB
i must add the "auto-*" in descriptor: <reference-descriptor name="car" class-ref="de.ralle.Car" auto-retrive="true" auto-update="true" auto-delete="true"> <foreignkey field-ref="carId"/> </reference-descriptor>
now i have a car and a customer, but custumer.carId is "null" in database... of course carId is anonym too! ...
any idea? or am i to silly and i must do pure sql ... as a penalty... ?
:-)
in table customer is: CREATE TABLE CUSTOMER ( ID INT PRIMARY KEY AUTO_INCREMENT, CARID INT, FOREIGN KEY (CARID) REFERENCES CAR(ID) );
thanks!
--- Ralf Bode <[EMAIL PROTECTED]> schrieb: >
Thanks
Brian,
but do you mean with "anonymous" keys ?
now i have (in classes): CUSTOMER car: Car carId: int
CAR: id: int
(and the XML desc for it like in mail before) am i with anon.keys able to "see" car-fk in database-table CUSTOMER? after: broker.store(customer); ?
thanks again, and thanks for your patience. greetings!
On the FK thing, if you do not use anonymous
FK's
the ID's need to be managed manually, as well as the references.
I
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