Perhaps the repository could postpone updating a particular index,
instead logging the changes which might get played back later to
update the index. As you point out, however, we'd have to think about
what would happen when items come and go.
Alternatively, If the repository versions indexes, maybe we could use
a previous version of the index instead of the current one.
John
On Nov 8, 2007, at 9:31 AM, Bryan Stearns wrote:
In a discussion on the design list*, Mimi asked for implementation
perspective for a change to cause all the columns to not reorder
immediately when the user changes an item attribute that affects
the current sort.
The triage column currently does this, by keeping two sets of
triage attributes: one set is always present, and controls the
color of the triage button in the detail view and dashboard, and
changes immediately when the user clicks on a button; the other set
is only present when an unpurged triage status change exists on the
item (eg, the user clicked on a button but hasn't clicked the
Triage toolbar button yet) -- the index mechanism uses it in
preference to the first set if it exists.
One way to accomplish this change would be to double all the
attributes this way - this probably wouldn't affect indexing
performance too badly (though the index comparison functions would
look pretty ghastly). However, I don't think this approach would
scale well (and our items are already pretty heavy with attributes)
-- however, I haven't thought of another approach yet. I'm also
concerned with how new items (say, received by sharing) would get
ordered in an unpurged collection.
Anyone have any ideas?
...Bryan
* http://lists.osafoundation.org/pipermail/design/2007-November/
thread.html#7789
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Open Source Applications Foundation "chandler-dev" mailing list
http://lists.osafoundation.org/mailman/listinfo/chandler-dev
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Open Source Applications Foundation "chandler-dev" mailing list
http://lists.osafoundation.org/mailman/listinfo/chandler-dev
