Doug wrote on 10/15/2008 10:33:36 AM:
> > For me interesting part of JSR208 is WatchService API. I
> > think that we could consider having file system notifications
> > in EFS, instead of RefreshProvider API available only on the
> > resource layer.
>
> This is a good question. I don't think we've totally thought through the
> delta notification mechanism yet. I think by default we're putting it in
> the Project layer. I'll take a look at JSR 208 (or is it 203?) and get a
> feel for what they are trying to accomplish.
To be clear, while file system level notification is good (we have this
today on Windows), it's not a replacement for delta notification at the
project layer. What deltas provide are *batched* notification of changes
to both physical files and corresponding resource *metadata* (deltas are a
description of everything that happened since you were last notified).
File system level notification typically involves fine-grained, unbatched
notification of changes in the file system only (they describe a moment in
time rather than a span of time). So, while FS notification can be used to
reduce the notification lag on changes made directly in the file system,
it can't in any way replace the benefits clients are getting from the
resource delta mechanism today.
John
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