On Thu, 2003-11-06 at 10:57, [EMAIL PROTECTED] wrote: > I will give you an example of an 1 - N relation using XDoclet tags. > Using this code you can easisly figure out what to put in your code: > > Advertisement --1--------------------N-- Correction > > AdvertisementBean.java: > /** > * @ejb.interface-method > * @ejb.relation > * name = "Advertisement-Correction" > * role-name = "AdvertisementHasCorrections" > * cascade-delete = "no" > * @ejb.value-object > * aggregate = > "nl.informatiefabriek.om.correction.value.CorrectionValue" > * aggregate-name = "AllCorrection" > * members = > "nl.informatiefabriek.om.correction.interfaces.CorrectionLocal" > * members-name = "Corrections" > * relation = "external" > * type = "Collection" > * @jboss.relation-mapping style="foreign-key" > */ > public abstract Collection getCorrections(); > > CorrectionBean.java: > > /** > * @ejb.interface-method > * @ejb.relation > * name = "Advertisement-Correction" > * role-name = "CorrectionBelongsToAdvertisement" > * cascade-delete = "yes" > * @jboss.relation-mapping style = "foreign-key" > * @jboss.relation > * fk-column="advertisement_fk" > * related-pk-field="advertisementId" > */ > public abstract AdvertisementLocal getAdvertisement(); > > > If you don't need relationships between value objects you can just leave > out he @ejb.value-object tags.
Hi, Could you please show me what keys are you using on your relation? To build a relationship you must have the same key on both sides of the relation, right? If not, JBOSS throws an error. Since I don't have it, I only could made a ejbSelect, but I don't know what I'm losing on a select besides the CASCADE_DELETE. What is the performance gain/loose of using relationship, select or a value-object? What is value-object aggregation ? thanks, Pedro Salazar. -- -PS ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
