Suggestion for new feature - Range Rule

[jetfreakk]

Expected Behaviour

Range Validation: The RangeRule class will be specifically designed for validating whether a given fact falls within a specified numeric range with different inclusivity options. It's well-suited for scenarios where we have predefined expectations about the valid range of values for a particular fact.

Actual Behaviour

Currently Range Rule is not supported.

[sic2]

@jetfreakk thanks for this suggestion. Could you expand on this concept?
It would be good to provide some examples (as shown in the README) and list also the operations that would be supported (out of the existing ones and/or new ones).

Thanks

[jetfreakk]

Range Rule
The "Range Rule" will be used to evaluate whether a fact within a specified numeric range meets certain inclusivity criteria.
It checks if a given numeric fact falls within the defined range, considering whether the minimum and maximum values are included or excluded from the range. It will extend KeyBasedRule

Example:

{
  "type": "RANGE",
  "key": "age",
  "min": 18,
  "max": 30,
  "inclusiveMin": true,
  "inclusiveMax": false
}

Key	Fact	Min	Max	InclusiveMin	InclusiveMax	Result
"age"	25	18	30	true	false	VALID
"age"	30	18	30	true	false	INVALID
"age"	18	18	30	true	false	VALID
"age"	17	18	30	true	false	INVALID
"age"	31	18	30	true	false	INVALID

I have also cloned regola and implemented a first draft of the same if that helps.

[sic2]

Some ideas...

Rather than have inclusideMin/inclusiveMax, might be good to define a set of operations to be consistent with the other rules.

In the future, we could potentially consider having other operations too. For example, one that compares ranges and determines if a range included, overlaps, etc...

A limitation of this proposal is that it works for integers only. Should it work for alphanumerical values too? What about doubles?

Feel free to share a fork of your implementation. I will be happy to have a quick look ahead of any PR.

[jetfreakk]

That sounds like a good idea too.

I am assuming by some mentioned operations you mean the following (Tried drafting some examples of the operations)

Key	Fact	Min Range	Max Range	Operation	Other Range Key	Result
range1	{min: 5, max: 25}	10	20	INCLUDES	range2	VALID
range1	{min: 10, max: 20}	5	25	OVERLAPS	range2	VALID
range1	{min: 5, max: 10}	15	20	DOES_NOT_OVERLAP	range2	VALID

I have made use of "Numbers" so it should support Integers and Doubles. I don't see the use case of alphanumeric for this case. (Not sure how alphanumeric will come into picture here)

Sure,here is the fork.

https://github.com/jetfreakk/regola/blob/main/src/main/java/com/adobe/abp/regola/rules/RangeRule.java

[jetfreakk]

Additional Note :- The Above example of Operations is Range to Range comparision (Overlapping, sub-range, etc) . The one I was thinking about is more on the lines of a fact lying inside a rule and the fact being a Number (Example, 5 lies in [5,10].

[sic2]

@jetfreakk can you open a PR from your fork so I can start reviewing your proposals? Thanks