On 22 Feb 2007, at 13:37 , David Johnson wrote:
You're probably talking about dispatchToSublocations. This is the
code that looks up a containers sublocations and dispatches the
event to them.
This is probably the approach I will follow, but what if I want my
container objects notified?
One way to prevent this behaviour for your container is to write a
new ISublocations adapter for your container that simply returns
an empty sequence:
def __init__(self, context):
self.context = context
I thought you don't... ?
Even if I don't it seems the default Folder implementation follows
this logic and so if you have a folder with several large images
for example, then you will pay a price whenever an event is
issued. In general it seems that any change will result in the
entire ZODB being read for each event dispatch...if I still follow
the logic here.
That's not what I said. It will only happen on object moves, in
particular, when a container is moved. It will also only happen for
the subitems of that container, not "the whole ZODB", though arguably
that can mean a lot of data.
I would personally like to see some form of disabling event handlers.
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