Active Expressions

Active expressions are constructed in the Policy Server User Interface using the following syntax:

<@ lib=<lib-spec> func=<func-spec> param=<func-params>@>

An active expression based on the Java Authorization API has the following required fields:

lib contains the shared library name smjavaapi. This library is used with all active expressions that reference a custom Java class in param.
func contains the function name JavaActiveExpression. This function is the entry point for the smjavaapi library. It is used with all active expressions that reference a custom Java class in param.
param contains the following information.
- The name of your custom Java class
- Optionally, any parameters to pass to an instance of your class

You define an active expression when you configure the active policy, rule, or response in the Policy Server User Interface.