Combining algorithm declarations

Combining algorithm declarations provides short names and makes the declared algorithms available for use. Here are examples of rule and policy combining algorithm declarations:

ruleCombinator permitUnlessDeny =
    "urn:oasis:names:tc:xacml:3.0:rule-combining-algorithm:permit-unless-deny"
policyCombinator denyOverrides =
    "urn:oasis:names:tc:xacml:3.0:policy-combining-algorithm:deny-overrides"

The system.alfa file contains declarations for all the standard algorithms from the XACML specification, so users do not typically need to declare any algorithms.