Does this rule engine use Rete or any other algorithm for processing efficiency?

[ravimpatel]

Many rules engines (e.g. Biztalk, NRules etc.) use Rete algorithm for efficiency. Interested to know how this rule engine handles scenarios where there are many rules to be applied on many objects.

[ghost]

I took a really quick look at the code and it looks like it runs the rules in order. Though the magic seems to be in the pre-compiling & caching of the ruleset's by workflow. So as you add workflows to the engine instance, it will pre-emptively compile the expression trees necessary to evaluate the various predicates.

RulesEngine/src/RulesEngine/RulesEngine.cs

Line 332 in 4a2b345

private List<RuleResultTree> ExecuteAllRuleByWorkflow(string workflowName, RuleParameter[] ruleParameters)