| Interface | Description | 
|---|---|
| Barrier | A Barrier is any step that requires all left traversers to be processed prior to emitting result traversers to the right. | 
| Bypassing | |
| ComparatorHolder<S> | |
| EngineDependent | |
| HasContainerHolder | |
| LambdaHolder | |
| MapReducer<MK,MV,RK,RV,R> | |
| Mutating<E extends Event> | A marker interface for steps that modify the graph. | 
| PathProcessor | |
| Profiling | A Step can implement this interface in order to receive a reference to the MutableMetrics object for the Step. | 
| Ranging | |
| Scoping | |
| SideEffectCapable | |
| TraversalOptionParent<M,S,E> | |
| TraversalParent | 
| Enum | Description | 
|---|---|
| PathProcessor.ElementRequirement | |
| Scoping.Variable | |
| TraversalOptionParent.Pick | 
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