Thank you, that makes sense as it works for collections. Cheers Neil
-----Original Message----- From: Thomas Mahler [mailto:[EMAIL PROTECTED]] Sent: 27 November 2002 19:35 To: OJB Users List Subject: Re: should auto-delete be needed for ODMG Hi Neil, I fear the docs are a bit unprecise here. For your scenario you must use auto-delete="true". The doc is referring to DList collection mainly! cheers, Thomas Neil Blue wrote: > Hello, > > I have set up a simple test with OJB 0.9.7. > > I have two classes Simple and Simple2, where Simple contains a Simple2 > attribute. I then set up a repository for these classes: > > <class-descriptor > class="com.novobase.jaxbjdo.Simple" > table="simple"> > > <field-descriptor id="1" > name="id" > column="ID" > jdbc-type="INTEGER" > primarykey="true" > autoincrement="true"/> > > <field-descriptor id="2" > name="idSimple2" > column="simpleid" > jdbc-type="INTEGER"/> > > <reference-descriptor > refresh="true" > auto-retrieve="true" > <!-- I need to add auto-delete="true" here for ODMG to auto delete, though > the > documentation says you should not use this setting with ODMG --> > name="simple2" > class-ref="com.novobase.jaxbjdo.Simple2"> > <foreignkey field-id-ref="2"/> > </reference-descriptor> > > </class-descriptor> > > <class-descriptor > class="com.novobase.jaxbjdo.Simple2" > table="simple2"> > > <field-descriptor id="1" > name="id" > column="ID" > jdbc-type="INTEGER" > primarykey="true" > autoincrement="true"/> > </class-descriptor> > > for good measure here is my test code: > > // open the database > Implementation odmg = OJB.getInstance(); > Database db = odmg.newDatabase(); > db.open( "repository.xml", Database.OPEN_READ_WRITE ); > > // make simple > Simple simple = new Simple(); > Simple2 simple2 = new Simple2(); > simple.setSimple2( simple2 ); > > // print the object > System.err.println( simple ); > > // write the object > Transaction tx = odmg.newTransaction(); > tx.begin(); > tx.lock( simple, Transaction.WRITE ); > tx.commit(); > > // query for the simple object > tx.begin(); > OQLQuery query = odmg.newOQLQuery(); > query.create( "select * from com.novobase.jaxbjdo.Simple" ); > DList allObjects = ( DList ) query.execute(); > tx.commit(); > > // print the object > System.err.println( allObjects ); > > // delete the object > tx.begin(); > Iterator itor = allObjects.iterator(); > while ( itor.hasNext() ) > { > db.deletePersistent( itor.next() ); > } > tx.commit(); > > // query for the simple2 object > tx.begin(); > query = odmg.newOQLQuery(); > query.create( "select * from com.novobase.jaxbjdo.Simple2" ); > allObjects = ( DList ) query.execute(); > tx.commit(); > > // print the object > System.err.println( allObjects ); > > Thanks > Neil > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
