On Aug 5, 2005, at 6:20 AM, Julien Anguenot wrote:
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Hi,
I would like to order the before commit hooks on a transaction by
being
able to specify an order for a subscriber at registration time. For
the
moment, they are called in the order they've been registred.
I like this idea, and was just idly wishing for it this morning.
The order argument could be an integer with a default value to 0 added
to the registration method.
I usually like the word 'priority' for this sort of value, rather
than 'order'. To me 'order' implies unique value--i.e., with 'order'
I am mildly surprised to learn that two entries may have the same
order. I am not surprised that two entries may share a priority.
If negative values are acceptable then a default value of 0 is OK by me.
We could just insert the subscriber wihin the queue according to this
order parameter if found *or* sorting the queue according to this
parameter before flushing the queue and calling the hooks.
I think it would be ideal if before commit hooks with the same
priority continue to be in the order in which they were added. There
are a number of ways to accomplish this and I expect you can choose a
very reasonable one :-)
Gary
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