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Steve Richter wrote:

On 8/21/05, Kyle Goodwin <goodwink@xxxxxxxxxxxxxx> wrote:
Steve Richter wrote:

The reason is managed code. Managed code allows the programmer to do
two core functions with ease. Return an object from a function call
without the necessity of copying all the bytes of the object ( in c#
you return a reference to the object.  in traditional languages like
c++ and rpg you return a copy of the object ).  By the same mechanism,
managed code allows an object to be added and removed from a
collection or list without the performance penalty of having to copy
the object.


You can easily return a reference to an object in C or C++ via a pointer
(*) or in C++ specifically via a reference (&).  You can remove a member
from a list/collection by unlinking its pointers from the list and
returning a pointer to the object if you want to use it or using
"delete" on it if you just want to deallocate it.  Neither of these
require copying the object.  None of the things you mention here are
properties of "managed code."  What managed code does for you,
basically, is handle the memory allocation/deallocation dynamically
without your having to invoke new, malloc, delete, or free.

I dont know Java but in c# you certainly have to "new" each object. In C++ you use smart pointers to do what managed code handles
automatically.  We can argue this if you want but the proof for me is
the fact that just about all the windows c++ application programmers
have switched to c#.  c++ .net handles managed code very well.  The
ease with which c#  exposes the features of managed code trumps all
the bells and whistles that c++ provides.

Java no doubt is in the same league as c# as a great language.  Can I
move my rpg sql programming to java?

-Steve

As for moving RPG programs into Java, it's certainly possible, but one must consider the benefits. Generally the things RPG is used for are pretty specific and pretty much exactly what RPG as a language targets doing well. If you're not using any native data access and all you're doing is SQL then probably RPG isn't doing much for you that you couldn't do equally well in Java. The true power of RPG, I feel, is that it is very good at doing the thengs it specializes in. RPG cycle programming, if you understand how to do it properly and when it's appropriate, is probably the easiest and fastest way to generate a report, do mass updates, or run a batch cycle which processes lots of large sets of records.

--
Kyle S. Goodwin
Extensicom LLC

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