[rules-users] What is the correct approach towards using Drools?
Wolfgang Laun
wolfgang.laun at gmail.com
Thu Feb 14 05:34:50 EST 2013
On 14/02/2013, Matteo Cusmai <cusmaimatteo at gmail.com> wrote:
> The facts should be immutable, so you should remove them and insert again
> when they change.
> If your facts change often, you have to consider to use fusion where your
> facts will be events.
This is a very restricted view of what facts and events should be and
when to use what.
Facts in WM don't have to be immutable - that's why there is update/modify.
Frequent changes of facts don't necessitate Fusion.
An event fact is almost always immutable, as a real-world event is.
-W
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