Expressions
Description
The Expression signifies that an element that extends the ExpressionType and is a member of the Expression substitution group shall appear in its place. The Expression is not used directly in a policy.
Custom attributes
The attributes depends on the Expression type selected.
EXPRESSION TYPE | OTHER FIELDS | DATA TYPE |
Attribute value | Value: alfanumeric field | Available data types. |
Resource | Attribute designator
|
Available data types. |
Subject |
Attribute designator
|
Available data types. |
Action |
Attribute designator:
|
Available data types. |
Environment |
Attribute designator:
|
Available data types. |
Attribute selector | Attribute selector: alfanumeric field | Available data types. |
Variable | Variable: alfanumeric field | -- |
Function |
Function type:
|
Available data types. |
Function name |
Function type:
Function: the value depends on the function type selected. |
Available data types. |
Data Type
Available data types
- String:
- Boolean
- Integer
- Double
- Date and time
- Date
- Time
- HEX-encoded binary
- URI
- Year-month duration
- Day-time duration
- Base 64 binary
- X. 500 name
- RFC822 name
https://docs.oasis-open.org/xacml/2.0/access_control-xacml-2.0-core-spec-os.pdf