org.apache.hivemind.conditional
Interface Evaluator
- All Known Implementing Classes:
- AndEvaluator, ClassNameEvaluator, NotEvaluator, OrEvaluator, PropertyEvaluator
public interface Evaluator
An evaluator is paired with a Node. The Node provides structure, the Evaluator provides
meaning, interpreting the node.
- Since:
- 1.1
- Author:
- Howard M. Lewis Ship
evaluate
boolean evaluate(EvaluationContext context,
Node node)
- Invoked by the Node to evaluate its own value. Typical implementations will extract the
Node's
left and
right properties and combine or
otherwise evaluate them. Terminal nodes in the tree will have evaluators that don't do that
but generate a return value internally.