Kent Eschenberg <[EMAIL PROTECTED]> writes:
> --On Wednesday, May 15, 2002 <[EMAIL PROTECTED]> wrote:
> > changed data is not reread
>
> DX avoids re-execution of a module by saving its output in cache, and using
> the cache if the module's inputs have not changed. That is why it is not
> re-reading your file.
>
> I think you can turn off the cache for a particular module. However, this
> may mean DX re-reads the file every time the pipeline updates.
I think this is essentially what I would need. But following up
data = Import("file.dx");
with
data = Options (data, "cache", 0);
does not work.
> You could have your file change the name of the file each time it is
> written: stuff1.dat, stuff2.dat, ... , then send the new file name down
> your pipe each time one is ready.
>
> Yet another approach is possible if the DX input module you use has other
> parameters that make little difference. Perhaps some option that is not
> actually used for your type of data. If so, have your application send a
> new version of this parameter after the data file has changed to trick DX
> into re-reading the file.
I had thought of that already, but found it a little strange. But it
works really nice. And guess what: I toggle the *cache* option with
every call:-)
Thanks, Nicolas.
