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Re: Objective-C/Java Translation


From: Marcus G. Daniels
Subject: Re: Objective-C/Java Translation
Date: 25 Jan 2001 08:37:17 -0800
User-agent: Gnus/5.070084 (Pterodactyl Gnus v0.84) Emacs/20.4

>>>>> "PJ" == Paul E Johnson <address@hidden> writes:

PJ> Just to make sure I understand, is this right: many Impl classes
PJ> have create() methods (constructors) that allow the user to pass
PJ> through all of the arguments that would be needed separate steps
PJ> of the create-phase (CImpl), so no separate use of CImpl is
PJ> necessary. 

Yes, but don't confuse create methods with constructors, they are actually
different.

PJ> My followup questions: 1. If one wants to subclass from an Impl
PJ> that has the needed create() method, is it sufficient to write
PJ> just one subclass for MyObjectImpl that extends SwarmImpl ? 

Yes, but you'll need to make a constructor that does a "super (aZone)"
because it isn't the default kind of constructor.

PJ> 2. I've never seen the SImpl class used in a Java program.  Have
PJ> you?

As I indicated, there is no SImpl.


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