com.tinkerpop.gremlin.process.util

Class EmptyTraversalStrategies

java.lang.Object

com.tinkerpop.gremlin.process.util.EmptyTraversalStrategies

All Implemented Interfaces:

TraversalStrategies, java.lang.Cloneable

public final class EmptyTraversalStrategies
extends java.lang.Object
implements TraversalStrategies

Author:

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

Nested Class Summary

Nested classes/interfaces inherited from interface com.tinkerpop.gremlin.process.TraversalStrategies

TraversalStrategies.GlobalCache

Method Summary

Modifier and Type	Method and Description
TraversalStrategies	addStrategies(TraversalStrategy... strategies) Add all the provided TraversalStrategy instances to the current collection.
void	applyStrategies(Traversal.Admin<?,?> traversal, TraversalEngine engine) Apply all the TraversalStrategy optimizers to the Traversal for the stated TraversalEngine.
TraversalStrategies	clone()
TraverserGenerator	getTraverserGenerator(Traversal.Admin<?,?> traversal) Get the TraverserGenerator to use to generate traversers in the Traversal.
static EmptyTraversalStrategies	instance()
TraversalStrategies	removeStrategies(java.lang.Class<? extends TraversalStrategy>... strategyClasses) Remove all the provided TraversalStrategy classes from the current collection.
void	setTraverserGeneratorFactory(TraverserGeneratorFactory traverserGeneratorFactory) Set the TraverserGeneratorFactory to use for determining which Traverser type to generate for the Traversal.
java.util.List<TraversalStrategy>	toList() Return all the TraversalStrategy singleton instances associated with this TraversalStrategies.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.tinkerpop.gremlin.process.TraversalStrategies

sortStrategies

Method Detail

toList

public java.util.List<TraversalStrategy> toList()

Description copied from interface: TraversalStrategies

Return all the TraversalStrategy singleton instances associated with this TraversalStrategies.

Specified by:

toList in interface TraversalStrategies

applyStrategies

public void applyStrategies(Traversal.Admin<?,?> traversal,
                            TraversalEngine engine)

Description copied from interface: TraversalStrategies

Apply all the TraversalStrategy optimizers to the Traversal for the stated TraversalEngine. This method must ensure that the strategies are sorted prior to application.

Specified by:

applyStrategies in interface TraversalStrategies

Parameters:

traversal - the traversal to apply the strategies to

engine - the engine that the traversal is going to be executed on

addStrategies

public TraversalStrategies addStrategies(TraversalStrategy... strategies)

Description copied from interface: TraversalStrategies

Add all the provided TraversalStrategy instances to the current collection. When all the provided strategies have been added, the collection is resorted.

Specified by:

addStrategies in interface TraversalStrategies

Parameters:

strategies - the traversal strategies to add

Returns:

the newly updated/sorted traversal strategies collection

removeStrategies

public TraversalStrategies removeStrategies(java.lang.Class<? extends TraversalStrategy>... strategyClasses)

Description copied from interface: TraversalStrategies

Remove all the provided TraversalStrategy classes from the current collection. When all the provided strategies have been removed, the collection is resorted.

Specified by:

removeStrategies in interface TraversalStrategies

Parameters:

strategyClasses - the traversal strategies to remove by their class

Returns:

the newly updated/sorted traversal strategies collection

clone

public TraversalStrategies clone()
                          throws java.lang.CloneNotSupportedException

Description copied from interface: TraversalStrategies

Specified by:

clone in interface TraversalStrategies

Overrides:

clone in class java.lang.Object

Throws:

java.lang.CloneNotSupportedException

getTraverserGenerator

public TraverserGenerator getTraverserGenerator(Traversal.Admin<?,?> traversal)

Description copied from interface: TraversalStrategies

Get the TraverserGenerator to use to generate traversers in the Traversal.

Specified by:

getTraverserGenerator in interface TraversalStrategies

Parameters:

traversal - the traversal that will have traversers generated for it

setTraverserGeneratorFactory

public void setTraverserGeneratorFactory(TraverserGeneratorFactory traverserGeneratorFactory)

Description copied from interface: TraversalStrategies

Set the TraverserGeneratorFactory to use for determining which Traverser type to generate for the Traversal.

Specified by:

setTraverserGeneratorFactory in interface TraversalStrategies

Parameters:

traverserGeneratorFactory - the factory to use

instance

public static EmptyTraversalStrategies instance()