Combining algorithm declarations
Combining algorithm declarations provides short names to algorithms and makes the declared algorithms available for use. The following 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 typically you don't need to declare any algorithms.