IncidentToAdjacentStrategy (Apache TinkerPop 3.6.2 API)

java.lang.Object
- org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy<TraversalStrategy.OptimizationStrategy>
- - org.apache.tinkerpop.gremlin.process.traversal.strategy.optimization.IncidentToAdjacentStrategy

All Implemented Interfaces:

Serializable, Comparable<Class<? extends TraversalStrategy>>, TraversalStrategy<TraversalStrategy.OptimizationStrategy>, TraversalStrategy.OptimizationStrategy
```
public final class IncidentToAdjacentStrategy
extends AbstractTraversalStrategy<TraversalStrategy.OptimizationStrategy>
implements TraversalStrategy.OptimizationStrategy
```
This strategy looks for .outE().inV(), .inE().outV() and .bothE().otherV() and replaces these step sequences with .out(), .in() or .both() respectively. The strategy won't modify the traversal if:
- the edge step is labeled
- the traversal contains a path step
- the traversal contains a lambda step
By re-writing the traversal in this fashion, the traversal eliminates unnecessary steps and becomes more normalized.
Author:

Daniel Kuppitz (http://gremlin.guru)

See Also:

Serialized Form

Example:
```
 __.outE().inV()         // is replaced by __.out()
 __.inE().outV()         // is replaced by __.in()
 __.bothE().otherV()     // is replaced by __.both()
 __.bothE().bothV()      // will not be modified
 __.outE().inV().path()  // will not be modified
 __.outE().inV().tree()  // will not be modified
 
```

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy
  TraversalStrategy.DecorationStrategy, TraversalStrategy.FinalizationStrategy, TraversalStrategy.OptimizationStrategy, TraversalStrategy.ProviderOptimizationStrategy, TraversalStrategy.VerificationStrategy

Field Summary
- Fields inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy
  STRATEGY

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`apply(Traversal.Admin<?,?> traversal)`
`Set<Class<? extends TraversalStrategy.OptimizationStrategy>>`	`applyPost()`	The set of strategies that must be executed after this strategy is executed.
`Set<Class<? extends TraversalStrategy.OptimizationStrategy>>`	`applyPrior()`	The set of strategies that must be executed before this strategy is executed.
`static IncidentToAdjacentStrategy`	`instance()`

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy
equals, hashCode, toString

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy
getConfiguration

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.OptimizationStrategy
compareTo, getTraversalCategory

- Method Detail
  - instance
```
public static IncidentToAdjacentStrategy instance()
```
  - apply
```
public void apply(Traversal.Admin<?,?> traversal)
```
    Specified by:
    
    apply in interface TraversalStrategy<TraversalStrategy.OptimizationStrategy>
  - applyPrior
```
public Set<Class<? extends TraversalStrategy.OptimizationStrategy>> applyPrior()
```
    Description copied from interface: TraversalStrategy
    
    The set of strategies that must be executed before this strategy is executed. If there are no ordering requirements, the default implementation returns an empty set.
    
    Specified by:
    
    applyPrior in interface TraversalStrategy<TraversalStrategy.OptimizationStrategy>
    
    Returns:
    
    the set of strategies that must be executed prior to this one.
  - applyPost
```
public Set<Class<? extends TraversalStrategy.OptimizationStrategy>> applyPost()
```
    Description copied from interface: TraversalStrategy
    
    The set of strategies that must be executed after this strategy is executed. If there are no ordering requirements, the default implementation returns an empty set.
    
    Specified by:
    
    applyPost in interface TraversalStrategy<TraversalStrategy.OptimizationStrategy>
    
    Returns:
    
    the set of strategies that must be executed post this one