timeSetEquals Function Description
Description
This method returns true if both sets of attribute values of type time are equal. Technically, it uses the subset function on the first and second arguments ANDed with the subset function and the second and first argument. Note that duplicate values have no impact on the comparison. For instance, the following 2 sets are equal: [a,a,c,b] and [b,c,a,c].
timeSetEquals belongs to the ALFA function reference's
Set functions category. It maps to the XACML function identifier
urn:oasis:names:tc:xacml:1.0:function:time-set-equals, takes 2 arguments and returns a value of type boolean.
| Property | Value |
|---|---|
| Category | Set functions |
| # Arguments | 2 |
| Arguments |
|
| Return Value | boolean |
| Expressed As | pre-fix |
| Representation | ALFA short name |
| Allowed In Target | false |
| ALFA Shorthand | None |
| Commutative | true |
Example
/**
* Allow a user to eat if his feed times coincide exactly with the meal times
*/
rule timeSetEqualsExample{
target clause Attributes.actionId=="eat"
permit
condition timeSetEquals(feedTimes,mealTimes)
}Allow a user to eat if their feed times are exactly the same as the meal times, no more and no less.
Related Functions
Other functions in the Set functions category: