Re: Mapped LDA - ILE common variables

Jon Paris wrote:

> >> "Now that we are going to ILE where we can have common/local variables, we
> are
> thinking of having the users signon to a shell menu program which basically
> declares EVERY variable from EVERY application file as common variables.  Any
> thoughts on that one?" <<
>
> Seems like overkill to me, not to mention hazardous to your health.  I don't
> know the exact "cost" of doing this but there is some performance hit due to
> the fact that every program except the EXPORTer is referencing every variable
> indirectly.  Comp-Sci purists will also have fits over the fact that any
> variable can be changed anywhere _without_ being passed as a parameter etc.
> The potential for unwanted side-effects is truly horrible.

Should have been clearer.  Not EVERY variable, just the value of the last record
read from any file used within a given application.  Each program would only
manipulate local variables.

Under the RPGIII call structure we were faced with passing key values and having
the called program do another chain or passing a slew of parameters.  We opted 
for
passing the key values and rechaining cause one never knows when another value 
from
the file may be needed.  Although the odds are that the record is already in 
cache
and we used a shared ODP it just didn't feel good.

Thanks for the feedback.

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