| Interface | Description | 
|---|---|
| Parameterizing | |
| Path | |
| Step<S,E> | |
| Traversal<S,E> | |
| Traversal.Admin<S,E> | |
| TraversalEngine | A TraversalEngine is reponsible for executing a  Traversal. | 
| TraversalEngine.Builder | |
| TraversalSideEffects | A  Traversalcan maintain global sideEffects. | 
| TraversalSource | A  TraversalSourceis responsible for generating aTraversal. | 
| TraversalSource.Builder<C extends TraversalSource> | |
| TraversalStrategies | A  Traversalmaintains a set ofTraversalStrategyinstances within a TraversalStrategies object. | 
| TraversalStrategy<S extends TraversalStrategy> | A  TraversalStrategydefines a particular atomic operation for mutating aTraversalprior to its evaluation. | 
| TraversalStrategy.DecorationStrategy | Implemented by strategies that adds "application logic" to the traversal (e.g. | 
| TraversalStrategy.FinalizationStrategy | Implemented by strategies that do final behaviors that require a fully compiled traversal to work (e.g. | 
| TraversalStrategy.OptimizationStrategy | Implemented by strategies that rewrite the traversal to be more efficient, but with the same semantics
 (e.g. | 
| TraversalStrategy.ProviderOptimizationStrategy | Implemented by strategies that rewrite the traversal to be more efficient, but with the same semantics. | 
| TraversalStrategy.VerificationStrategy | Implemented by strategies where there is no more behavioral tweaking of the traversal required. | 
| Traverser<T> | A  Traverserrepresents the current state of an object flowing through aTraversal. | 
| Traverser.Admin<T> | The methods in System.Traverser are useful to underlying Step and Traversal implementations. | 
| TraverserGenerator | A TraverserGenerator will generate traversers for a particular  Traversal. | 
| Class | Description | 
|---|---|
| NumberHelper | |
| P<V> | |
| Path.Exceptions | |
| SackFunctions | |
| Traversal.Exceptions | A collection of  Exceptiontypes associated with Traversal execution. | 
| TraversalSideEffects.Exceptions | |
| TraversalStrategies.GlobalCache | 
| Enum | Description | 
|---|---|
| Compare | Compareis aBiPredicatethat determines whether the first argument is==,!=,>,>=,<,<=to the second argument. | 
| Contains | Containsis aBiPredicatethat evaluates whether the first object is contained within (or not
 within) the second collection object. | 
| Operator | |
| Order | |
| Pop | |
| SackFunctions.Barrier | |
| Scope | Many  Stepinstance can have a variable scope. | 
| TraversalEngine.Type | 
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