LambdaRestrictionStrategy (Apache TinkerPop 3.6.3 API)

java.lang.Object
- org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy<TraversalStrategy.VerificationStrategy>
- - org.apache.tinkerpop.gremlin.process.traversal.strategy.verification.LambdaRestrictionStrategy

All Implemented Interfaces:

Serializable, Comparable<Class<? extends TraversalStrategy>>, TraversalStrategy<TraversalStrategy.VerificationStrategy>, TraversalStrategy.VerificationStrategy
```
public final class LambdaRestrictionStrategy
extends AbstractTraversalStrategy<TraversalStrategy.VerificationStrategy>
implements TraversalStrategy.VerificationStrategy
```
LambdaRestrictionStrategy does not allow lambdas to be used in a Traversal. The contents of a lambda cannot be analyzed/optimized and thus, reduces the ability of other TraversalStrategy instances to reason about the traversal. This strategy is not activated by default. However, graph system providers may choose to make this a default strategy in order to ensure their respective strategies are better able to operate.
Author:

Marko A. Rodriguez (http://markorodriguez.com)

See Also:

Serialized Form

Example:
```
 __.out().map(v -> v.get().value("name"))           // throws an IllegalStateException
 __.out().filter(v -> v.bulk() > 2)              // throws an IllegalStateException
 __.choose(v -> v.sack() == 1,out(),in())           // throws an IllegalStateException
 __.select().by(v -> v.get().id())                  // throws an IllegalStateException
 __.order().by(a,b -> a > b)                        // throws an IllegalStateException
 
```

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)`
`static LambdaRestrictionStrategy`	`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
applyPost, applyPrior, getConfiguration

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

Method Detail

apply
```
public void apply(Traversal.Admin<?,?> traversal)
```
Specified by:

apply in interface TraversalStrategy<TraversalStrategy.VerificationStrategy>

instance

public static LambdaRestrictionStrategy instance()