Hi,

I am looking to use drools where I can have users subscribed to specific alerts. Hence for example -
I can have a rule like ->
Rule 1 -> amount < {amount}

Where {amount} is the value which the user defines at the time of subscribing, hence the user wants to recieve an alert when the amount in his account < {amount} that he just subscribed to.

I was trying to use the DROOLS template feature and was even able to succesfully execute this specific scenario. The use case I was executing is, when an event of type Rule 1 occurs , I get all users who are subscribed to rule 1, and then create a drl file for all of those users with there custom data substituted as part of {amount}. Now I fire the rules(note I have multiple rules one for each user} which executes for this specific event and gives the required results(The above example is just a sample example). My area of concerns are -

1. Is Rule engine really the platform I am looking at? As I dont have any complex logic , I just want to use some component which can evaluate my Events that arrive with different subscription rules?

2. If I regenearte the drl file every time an event arrives (I need to because every time a iff type of rule can fire and the list of subscribers can be different as well), this would have a performace impact as the rules are compiled and generated every time and not really cached?

Please let me know if the problem is not clear. Any help/inputs in this regard would be highly appreciated.

Thanks
Shikha

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