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Newsgroups: comp.lang.ada
Subject: Re: GC in Ada
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From: Markus E Leypold
 <development-2006-8ecbb5cc8aREMOVETHIS@ANDTHATm-e-leypold.de>
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Date: Thu, 08 Feb 2007 10:33:58 +0100
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Martin Krischik <krischik@users.sourceforge.net> writes:

> Markus E Leypold schrieb:
>
>> Martin Krischik <krischik@users.sourceforge.net> writes:
>
>>> Maciej Sobczak schrieb:
>
>>> On my Weblogic course I could not stop shaking my head about all the
>>> problems which brings the "all is pointer" concept of Java.
>
>> Fortunately you can ignore this "all is pointer" by exposing only a
>> read-only interface to the client and leaving the rest to the GC

> Only Java has no const keyword. It is supposed to get one but how long
> until it is actually used?


Excuse me, but ... "a read only interface" means:

   (a) make all field of objects private 
   (b) allow access only my methods
   (c) provide only Get_*-methods, no Set_*-methods

(a+b) is actually standard good practice in software engineering,
since it allows to hide representation and allows for maintaining
cached attributes/data (which direct access to fields won't allow).

Regards -- Markus