Re: newbie - OOP in Ada Set and Get Methods

["Jeff C r e e.m" <jcreem@yahoo.com>]

You probably need to step back and read a few of the Ada tutorials rather 
than trying to hack-and-whack
C++ in Ada.

First, I hate to plug this website because it is old and unmaintained and 
should be shutdown....But this
tutorial is short and is a very good starting point

http://www.adahome.com/Ammo/cpp2ada.html


A few tips to think about

1) Packages are closer to namespaces than classes.
    Your "field" variable is essentially just a stand alone 'global' value 
that is in no way tied to your class

2) Tagged records are closer to "classes"

3) There is no "this" in Ada so if you want an object to be visible within a 
subprogram it needs to be a parameter.

4) There is no special notation for OO calls v.s. non-OO calls in Ada and 
therefore (currently) you do not call a subprogram
    with object.method style but rather package.subprogram just as you would 
do for non-OO code. Ada 2005 will (probably)
    be adding object.method mostly because it really seems to be a hard 
thing for people from other programming lanaguages
    to swallow (my opinion. I have not seen any really strong technical 
argument for the feature..but perhaps there is one)


After reading a few of the articles at adahome, you can ignore it and start 
using www.adapower.com
and www.adaworld.com which are actually up to date.