Re: [rules-users] What is the correct approach towards using Drools?
On 14/02/2013, Matteo Cusmai <cusmaimatteo(a)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