[drools-user] Three Important Doubts

hi,

my doubts are:

1)
cant we check an expression against a single value in the condition part?
i mean like this:
s : Student( mark1 + mark2 >= 100 )
(where mark1 and mark2 are the properties of Student)

is there any way to do it?

2)
cant we use properties on both sides of a condition?
for ex:
s : Student ( mark1 > mark2 ) 

3)
how can we use global variable (set and get)?
plz illustrate using a simple example.


plz reply A.S.A.P.
thanx in advance
joj

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