Rules governing stack purging

J. Landman Gay jacque at
Tue Oct 31 14:49:25 EST 2006

Trevor DeVore wrote:
> On Oct 31, 2006, at 11:08 AM, Richard Gaskin wrote:
>> The destroyStack property is used to govern whether a stack remains in 
>> memory when using "go" or "open", but it not honored when a property 
>> within a stack is accessed.
>> By honoring the destroyStack property consistently, accessing 
>> properties of stacks which have this set to true would cause the 
>> engine to read the file, obtain the data, dispose of the copy of the 
>> stack in memory, and return the value requested.
> I guess in my mind the current behavior makes sense.  I see a read of a 
> property as something that reads a property, bringing it into memory if 
> need be to complete the operation.  You approach it as the reading of 
> the property being an open/read/close operation so destroyStack should 
> come into play.  Is that correct?

I have to admit I'm with you here, Trevor. The current behavior has 
never bothered me, and like Jerry, I use it to implement some things in 
my apps. It seems trivial to add a single line that closes the stack, 
which is what I do.

In my situation, the stacks I am accessing are very large. There would 
be a delay if they had to be constantly opened and closed. I could live 
with it if I had to set the destroystack to false, but it is convenient 
to have them go away completely when I do open them visibly for editing.

Jacqueline Landman Gay         |     jacque at
HyperActive Software           |

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