I can not understand the behavior of drools windows that i need for correlation of events, i mean i want to calculate the total amount of Objects with amount property inserting in engine over last 10 secs.
Here is my rule pattern:
Number( intValue >1000) from accumulate(Test( $p:price ) over window:time( 10s ),sum( $p ) )
It gives a compilation error:
Rule Compilation error : [Rule name='Example 1']
com/retailerdev/rules/Rule_Example_1.java (15:660) : $p cannot be resolved to a variable
Please help .Thanks in advance