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From: shang@corp.mot.com (David L. Shang)
Subject: Re: Eiffel and Java
Date: 1996/11/12
Message-ID: <1996Nov12.145105.17219@schbbs.mot.com>#1/1
X-Deja-AN: 196164649
sender: news@schbbs.mot.com (SCHBBS News Account)
references: <1996Nov12.143451.16691@schbbs.mot.com>
organization: MOTOROLA 
reply-to: shang@corp.mot.com
newsgroups: 
 comp.lang.eiffel,comp.lang.ada,comp.lang.sather,comp.lang.java.advocacy,comp.object
Date: 1996-11-12T00:00:00+00:00
List-Id: <comp.lang.ada>


In article <1996Nov12.143451.16691@schbbs.mot.com> shang@corp.mot.com (David L.  
Shang) writes:
> Let A1, A2, A3, ... be the interfaces, and B1, B2, B3 be the
> implementations in the sever. In client, if we want a subclass
> of  A1, A2, A3, ... to reuse the code of B1, B2, B3 without
> dependent on B1, B2, B3, we can simply write:
> 
> 	class C is A1 by B1, A2 by B2, A3 by B3,...;
> 

Note that C is dependent only on A1, A2, A3,..., but not on
B1, B2, B3,.... Server can change or replace the implementation
without affecting the client applications.

Such implementations can be supplied by other clients. The client
"C1" can use the implementation provided by the client "C2" without
dependent on "C2". This makes dynamic software components much
easier. 

> For detail, refer to:
> 
> 	Multiple Inheritance -- A Critical Comparion
> 	http://www.sigs.com/publications/docs/oc/9611/oc9611.shang.c.html
> 
> David Shang
>