dateTimeAtLeastOneMemberOf Function Description

Description

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

dateTimeAtLeastOneMemberOf 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:dateTime-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 dateTime
Return Value boolean
Expressed As pre-fix
Representation ALFA short name
Allowed In Target false
ALFA Shorthand None
Commutative true

Example

/**
 * Permit if one value the requested datetimes is equal to at least one of the available
 * datetimes.
 */
rule dateTimeAtLeastOneMemberOfExample{
    permit
    condition dateTimeAtLeastOneMemberOf(requestedDateTimes, availableDateTimes) || 
              dateTimeAtLeastOneMemberOf(requestedDateTimes, dateTimeBag("2002-10-10T12:00:00-05:00":dateTime)
    )
}

In this example, the rule will return Permit if there is at least one value in the first bag (a) equal to at least one value in the second bag (b). The example also illustrates an example of a dateTime value and how conversion is handled.

See Also

Related Functions

Other functions in the Set functions category:

Browse the full ALFA function reference.