Re: independent modules vs. service program.

[Bradley Stone <bvstone@xxxxxxxxx>]

Gerald,

Think of it this way.

A module is like copying the code into the program.  Only when you
recompile the program will it get the new version of the module (bind by
copy).

A service program is like a program you call.  When you update the service
program, any programs calling it will "call" the new version.  (bind by
reference).

Both have their advantages and disadvantages depending  on your environment.

A binding directory really doesn't do anything as far as this is
concerned.  It's more like a list of modules and service programs that can
bind to your program at compile time (by copy or reference).

Brad
www.bvstools.com

On Wed, Mar 9, 2016 at 3:05 PM, Gerald Magnuson <gmagqcy.midrange@xxxxxxxxx>
wrote:

> when we got going with ILE we started creating modules (single procedure),
> and then put them in a binding directory...
>
> now we have found lots of instances where we modified the modules,
> sometimes significantly, but didn't re-compile or updpgm...
>
> does putting your modules into a service program, instead of a binding
> directory, help with this?
>
> if a module changes, and it is bound up in a service program, and we
> re-compile the service program, does that somehow get the programs updated?
>
> -or-   either way, no matter how you handle modules...  you will need to
> re-compile or updpgm?
>
> I do think I understand ILE modules and ILE programs,  but components of
> service programs (signatures, export/import, binding source) I am not so
> clear on.
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