Add support for temporal events (CEP)

[snikolayev]

Complex event processing centers around the notion of events arriving in streams. These events are correlated with each other based on the time of their occurrence; formally, these correlations are defined in terms of temporal relationships.
When it pertains to rules engines and the Rete network, it is important to recognize and retract events that can no longer satisfy any temporal relationship.
This feature aims at enabling such capabilities in NRules, namely:

• Add the notion of an event (that has a time of occurrence and potentially duration)
• Add the notion of a clock
• Support temporal relationships between events (i.e. before, after, during, overlaps, within, etc.)
• Support window functions over event streams
• Support automatic garbage collection (retraction) of events that cannot satisfy any temporal relationships

[promontis]

What is your view on this? What are you ideas for the future?

[snikolayev]

@promontis see updated description. LMK if you have any ideas on this or want to discuss any feature on this list.

[AnisTss]

Any updates on this ? We are planning to use NRules in a business project and this feature is crucial.

[snikolayev]

This one is going to take a while, as this is a massive change. I wouldn't put that on the critical path of your project.

[AnisTss]

@snikolayev Thank you for your responsiveness.