From: Scott M Stark
Sent: Fri 2/17/2006 7:00 PM
To: Clebert Suconic; Ryan Campbell; Dimitris Andreadis
Cc: 'jboss-development@lists.sourceforge.net'; QA
Subject: RE: 3.2.8 Client -> 4.0.x Compatibility
My suggestion is that the useFullHashMode be updated to include
the hash of all methods in there interface inheritence tree hashed to the
subinterfaces as well as the interface. So, an interface B
like:
interface A
{
void m1(String);
}
interface
B extends A
{
void m2(String);
}
would have a hash
map of:
H(A:m1(String))
H(B:m1(String))
H(B:m2(String))
This
solves the existing RMIAdaptor problem where some methods were pushed into a
superinterface. The extra method hashes don't hurt anything.
>
-----Original Message-----
> From: Clebert Suconic
> Sent: Friday,
February 17, 2006 3:08 PM
> To: Scott M Stark; Ryan Campbell; Dimitris
Andreadis
> Cc: jboss-development@lists.sourceforge.net; QA
>
Subject: RE: 3.2.8 Client -> 4.0.x Compatibility
>
> I spent some
time today with this issue. I just want to throw
> some ideas to fix
this.
>
>
> First option:
>
> If you have
4.0:MarshalledInvocation.useFullHashMode=false,
> and
3.2:MarshalledInvocation.useFullHashMode=false, the
> testsuite should
pass.
>
> So, we could change FullHashMode to false if some
parameter
> is avaible, and 3.2.8.sp1 would be compatible with 4.0.4,
but
> not 3.2.8. The easiest way would be have a parameter to
>
change the FullHashMode on 4.0
>
>
>
> Second
option:
>
> We could also have an interface on RMIAdaptorImpl and
change
> MarshalledInvocation to do something
like:
>
> public static Map getInterfaceHashes(Class
intf)
> {
> If (intf
<implements> ThatInterface)
>
{
> ThatINterface
that =
(ThatInterface)intf.newInstance();
>
… delegate the hashCalculation to that,
somehow.
> }
>
}
>
>
> I don't like this idea, but I just wanted to throw
something
> on the discussion, as a brain
storm.
>
>
>
> Third options:
>
> An option
also, would be to back port RMIAdaptor from 4.0.x
> to 3.2.8, but that
would break compatibility between 3.2.8
> and previous versions, and I
don't know if there is a way to
> have a selective classLoading between a
newer and an older version.
>
>
>
>
> Any other
idea/option?
> Thoughts?
>
>
> Clebert Suconic
>
