Package org.neo4j.graphdb.traversal
Interface Evaluator
- All Known Subinterfaces:
PathEvaluator<STATE>
- All Known Implementing Classes:
Evaluator.AsPathEvaluator
,PathEvaluator.Adapter
public interface Evaluator
An Evaluator controls what's to be returned from a traversal and also how
pruning is done. It looks at a
Path
and decides whether or not it
should be included in the traversal result. It also decides whether the traverser
should continue down that path or if it should be pruned so that the traverser
won't continue down that path.-
Nested Class Summary
-
Method Summary
Modifier and TypeMethodDescriptionEvaluates aPath
and returns anEvaluation
containing information about whether or not to include it in the traversal result, i.e return it from theTraverser
.
-
Method Details
-
evaluate
Evaluates aPath
and returns anEvaluation
containing information about whether or not to include it in the traversal result, i.e return it from theTraverser
. And also whether or not to continue traversing down thatpath
or if it instead should be pruned so that the traverser won't continue down that branch represented bypath
.- Parameters:
path
- thePath
to evaluate.- Returns:
- an
Evaluation
containing information about whether or not to return it from theTraverser
and whether or not to continue down that path.
-