I tried it, but it did not work. the entry still remain in the database and can be retrieved.
I used java.util.List for collection, but it fails. Is that mean i should use org.apache.ojb.broker.util.collections.RemovalAwareCollection in my java code? ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, December 01, 2003 10:08 PM Subject: RemovalAwareCollection, was: RE: does PersistenceBroker.getCollectionByQuery use the cache? > Hello Gong, > > please start a new thread when you ask a new question. > > > -----Original Message----- > > > class myList and myEntry has a 1:n relationship > > each myList has a collection of myEntry(s) > > [..] > > > <collection-descriptor > > name="entries" > > > > collection-class= > > "org.apache.ojb.broker.util.collections.ManageableArrayList" > > element-class-ref="myEntry" > > auto-retrieve="true" > > auto-update="true" > > auto-delete="true" > > > > > <inverse-foreignkey field-ref="listId"/> > > </collection-descriptor> > > > > </class-descriptor> > > [..] > > > in this way, listPersisiter.store() and get() can automatically > > store and retrieve entry. > > > > but when i retrieve myList, and remove an entry from > > myList.entries, and store back, it can not automatically > > delete the entry in DB which have been removed from > > myList.entries. > > If you want this behaviour, you must not use > the ManageableArrayList (as you explicitly do, see above) > but have to use the RemovalAwareCollection (which is > actually the default.) > > Just remove the attribute collection-class from the > class-descriptor and try again. > > BTW: this is a FAQ. > > Olli > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
