Re: RE: Object properties -- RPG400-L


 He may have been wondering how you would respond.  If he asked me the same
question I would answer "I don't know.  I have no idea. The objects are
there and they work.  I am afraid I do not understand your question. Could
you give me an example of what you are asking me?"


---------------------------------------------------------
Booth Martin   http://www.MartinVT.com
Booth@MartinVT.com
---------------------------------------------------------

-------Original Message-------

From: rpg400-l@midrange.com
Date: Monday, November 11, 2002 09:19:49 AM
To: rpg400-l@midrange.com
Subject: Re: RE: Object properties

In IBM ILE RPG book , I read ILE PROCEDURES are encapsulated ,but
couldnt find the explanation ....
Just some help needed?please...
Regards&Thanks,
Murali

On Mon, 11 Nov 2002 Fisher, Don wrote :
>This might be a better question for the Midrange-L list.

>

>The AS/400 is not, repeat not, an object oriented system in the

>way you are

>using the term. The AS/400 has objects like files, programs,

>data areas,

>etc., and they do have properties like activation groups, maximum

>records,

>and format levels. However, these objects do not "inherit"

>properties of

>other objects, unless one is talking about the members of a file

>or if one

>object is duplicated from another. In the case of the former,

>the

>properties of a single member may not be changed without changing

>those of

>the file. In the latter case, the properties of the newly

>created object

>may be changed without affecting those of the original object.

>

>There are also modules that can be combined into one program

>object. In

>this case many properties of the modules may be very different,

>such as one

>being RPGIV, another CL, and another C. However, any properties

>of the

>program object, such as the activation group, are shared by all

>modules.

>

>I can't really comment on encapsulation as I don't think I

>understand the

>concept very well, but I don't believe the AS/400 is capable of

>such a

>thing. I could be wrong, of course.

>

>Hope that helps.

>

>Donald R. Fisher, III

>Project Manager

>The Roomstore Furniture Company

>(804) 784-7600 extension 2124

>DFisher@roomstoreeast.com

>

><clip>

>I can you quote examples (some situations)for all the

>properties

>of Object since AS400 is object oriented system....I would like

>to

>know various situations like Inheritance ,Encapsulation

>etc(object

>properties)how they happen in writing RPG programs....

>Procedure and subprocedure Can be example for

>Inheritance(inheriting properties from parent) right?I would

>like

>to know the situations for remaining object properties like

>encapsulation etc?

><clip>

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>


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