rfc822NameSetEquals Function Description
Description
This method returns true if both sets of attribute values of type rfc822Name 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].
rfc822NameSetEquals 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:rfc822Name-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
/**
* Permit (sending an email) if and only if the recipients are all the friends and vice-versa
*/
rule rfc822NameSetEqualsExample{
condition rfc822NameSetEquals(recipient, friends)
permit
}In this example, a user can send an email if and only if all the recipients are also all his friends.
Related Functions
Other functions in the Set functions category: