doubleAtLeastOneMemberOf Function Description

Description

This function takes in two parameters of type bag of double and returns true if there is at least one value in the first bag equal to at least one value in the second bag.

doubleAtLeastOneMemberOf 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:double-at-least-one-member-of, takes 2 arguments and returns a value of type boolean.

Property Value
Category Set functions
# Arguments 2
Arguments
  • 2 bags of values of type double
Return Value boolean
Expressed As pre-fix
Representation ALFA short name
Allowed In Target false
ALFA Shorthand None
Commutative true

Example

/**
 * Permit if the user has at least one number he/she picked in the list of lucky numbers
 * Both pickedNumbers and luckyNumbers can be multi-valued.
 */
rule doubleAtLeastOneMemberOfExample{
    permit
    condition doubleAtLeastOneMemberOf(double.pickedNumbers, double.luckyNumbers)
}

In this example, the rule will return Permit if there is at least one value in the pickedNumbers bag equal to at least one value in the luckyNumbers bag.

See Also

Related Functions

Other functions in the Set functions category:

Browse the full ALFA function reference.