org.nhindirect.policy

Interface ExecutionEngine

All Known Implementing Classes:

StackMachine

public interface ExecutionEngine

The execution engine is the final stage of the policy evaluation process. It executes an ordered vector of Opcode objects and produces a boolean result indicating if the previously provided certificate is compliant with the provided policy.

NOTE that the final operation in the vector must result in a boolean result. Opcode vectors resulting in any other final result type other than boolean is undefined and will result in PolicyProcessException being thrown.

Since:

1.0

Author:

Greg Meyer

Method Summary

Modifier and Type	Method and Description
Boolean	evaluate(Vector<Opcode> opcodes)

Method Detail

evaluate

Boolean evaluate(Vector<Opcode> opcodes)
          throws PolicyProcessException

Throws:

PolicyProcessException