Event expression operator precedence

Developing Apama Applications > EPL Reference > Events and Event Listeners > Event expressions > Event expression operator precedence

The following table lists the event expression operators in order by their precedence, from lowest to highest. See Expression operator precedence for a corresponding table of primary and bitwise expression operator precedence.

Operation	Operator
Logical negation	not
All	all
Logical intersection	and
Logical exclusive or	xor
Logical union	or
Followed-by	->

For example, the following expression:

on all A()or B() and not C() -> D()

is equivalent to this expression:

on (
(all A() )
or
(B() and (not C() ))
) -> D()

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