That's just an optimization layer, though. I actually have a hard time telling this apart from `java.util.function.Predicate` with its default `and`, `or`, and

That's just an optimization layer, though. I actually have a hard time telling this apart from `java.util.function.Predicate` with its default `and`, `or`, and `negate` methods... I can certainly understand using something like this when your users are building rules, because you don't know what they want to build so you just provide the base implementations and the operators. But if engineers are implementing all the logic, it seems like the criticisms called out in Wikipedia regarding obfuscation and re-implementation of basic operators would apply. https://en.wikipedia.org/wiki/Specification_pattern#Criticisms https://en.wikipedia.org/wiki/Specification_pattern#Criticis...