stringIsIn Function Description

Description

Returns true if the value of the first parameter is in the bag of values of the second parameter. Attributes of type string are compared using the stringEqual function.

stringIsIn belongs to the ALFA function reference's Bag functions category. It maps to the XACML function identifier urn:oasis:names:tc:xacml:1.0:function:string-is-in, takes 2 arguments and returns a value of type boolean.

Property Value
Category Bag functions
# Arguments 2
Arguments
  • atomic (single) value of type string
  • bag (collection) of values of type string
Return Value boolean
Expressed As pre-fix
Representation ALFA short name
Allowed In Target true
ALFA Shorthand None
Commutative false

Example

/**
* Allow if the value is in the collection of title values.
*/
rule stringIsInExample{
    permit
    condition stringIsIn("Fine-grained authorization policies with ALFA",title)
}

Permit if the value passed as the first parameter is in the bag of values passed as the second parameter

See Also

Related Functions

Other functions in the Bag functions category:

Browse the full ALFA function reference.