Re: [rules-users] About ReteOO.
Oana,
Yes, the behavior of eval and not nodes are equivalent to the test
and not nodes from Jess.
Yes, we use initial-fact as needed, but it is transparent to the
user.You don't need to do anything to make your rules whose first CE is
NOT/EXISTS/ACCUMULATE/FORALL/etc to work.
Yes, LIAN adapts a single fact into a tuple for propagating down the
network. For instance:
Rule
when
Person( $likes : likes )
Cheese( type == $likes )
then
end
As you can see, Person instance enters the network, then propagates
to a Join node, but the Join node expects a tuple from the left, so we
use LIAN to transform the left most fact from the network into a tuple
to propagate down the beta network.
Wanna start contributing in core development with us? :) Lots of
opportunities... :)
Regards,
Edson
nicolae oana wrote:
Hi all!
Today I've read about how JBossRules implements Rete algorithm.
Does the eval and not nodes from JBossRules act the same way as the
test and not nodes act in Jess? JBoss uses the assertion of
initial-fact to handle with the left input of those nodes, as Jess uses?
What is the purpose of the LeftInputNodeAdapter? (to provide the left
input for the BetaNode as a single object tuple?) I don't think I
understand what you meant by this.
Regards,
Oana.
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Edson Tirelli
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