Hey Ingo,
> Hi Simone,
>
> Friday, December 22, 2000, 11:33:34 PM, you wrote:
>
> BS> Hey,
>
> BS> Ingo, you load bean VerstorbenerBean (D) and EhegatteBean
> (C) from a jar
> BS> (with one CL, say CL1), and PersonBean (B) and
> AdresseBean (A) from another
> BS> one (with CL2); in C.ejbActivate you do fBPK on bean B,
> and you pass as
> BS> argument a PersonPK object, is this true ?
> No, I do not pass PersonPK as an argument. I got PersonPK with
> getPrimaryKey() from the EntityContext in PeronBean. What is fBPK ?
fBPK == findByPrimaryKey
CL = ClassLoader
See your code below: in C(EhegatteBean).ejbActivate:
PersonPK key = new PersonPK(); // Loaded with CL1
...
person = personHome.findByPrimaryKey(key);
So you *do* pass a PersonPK object as argument to fBPK. But this class is
loaded with CL1.
Now inside PersonBean, if you call EntityContext.getPrimaryKey() you get
CL1#PersonPK, while if you do new PersonPK you get a CL2#PersonPK, hence the
ClassCastException.
Bye
Simon
> BS> If so, then you load PersonPK with CL1, and the
> EntityContext references
> BS> CL1#PersonPK.
> BS> But then B.ejbActivate is called, and there you cast to
> PersonPK (which is
> BS> here loaded with CL2):
> BS> CL2#PersonPK pk = (CL2#PersonPK)ectx.getPrimaryKey().
> Unfortunately
> BS> ectx.getPrimaryKey() returns CL1#PersonPK.
> Some of the discussion I had directly with Rickard cause of the slow
> mail transfer with this list (more then one our).
>
> BS> If not so, can you post bean C code ? (ejbActivate and
> ejbRemove at least)
>
> Sure, following.
>
> BS> Rickard, I'm not 100% sure of this, WDYT ? Am I missing
> something ?
> BS> IMHO the cache can't do anything in this situation. How
> should I be supposed
> BS> to fix this problem ?
>
> BS> Ingo, I haven't thought about so much, but the only
> solution I found is the
> BS> one you found, a third jar under lib/ext. Rickard ?
> I think that this scenario could happen often in the case of reusing
> components.
Agree.
> BS> Merry Christmas and happy new year to everybody !
>
> Dito.
>
> Here ejbActivate and ejbRemove from EhegatteBean (C):
>
> ---- snip ----
> public void ejbRemove() throws RemoteException, RemoveException {
> super.ejbRemove(); // Just for testing
> person.remove();
> person = null;
> }
>
> public void ejbActivate() throws RemoteException {
> super.ejbActivate();
> PersonHome personHome;
> PersonPK key = new PersonPK();
> try {
> System.out.println("Versuche Person <" +
> ((EhegattePK)ectx.getPrimaryKey()).Mandant +
> "> <" + ((EhegattePK)ectx.getPrimaryKey()).Nummer +
> "> <E> zu finden.");
> key.Mandant = ((EhegattePK)ectx.getPrimaryKey()).Mandant;
> key.Nummer = ((EhegattePK)ectx.getPrimaryKey()).Nummer;
> key.Type = "E";
> personHome = getPersonHome();
> person = personHome.findByPrimaryKey(key);
> } catch(NamingException nex) {
> System.out.println("Naming: " + nex);
> throw new RemoteException("Naming: " + nex.getMessage());
> } catch(FinderException fex) {
> System.out.println("Finder: " + fex);
> throw new RemoteException("Finder: " + fex.getMessage());
> } catch(Exception ex) {
> System.out.println("Other: " + ex);
> throw new RemoteException("Other: " + ex.getMessage());
> }
> }
> ---- snap ----
>
> I wish Marry Cristmas and happy new year, too.
>
>
> so long
>
>
> Ingo Bruell
>
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