org.apache.tinkerpop.gremlin.process.traversal.util

Class EmptyTraversalStrategies

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.util.EmptyTraversalStrategies

All Implemented Interfaces:

Serializable, Cloneable, TraversalStrategies

public final class EmptyTraversalStrategies
extends Object
implements TraversalStrategies

Author:

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

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategies

TraversalStrategies.GlobalCache

Field Summary

Fields inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategies

STRATEGY_CATEGORIES

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) Apply all the TraversalStrategy optimizers to the Traversal for the stated TraversalEngine.
TraversalStrategies	clone()
TraverserGeneratorFactory	getTraverserGeneratorFactory() Get the TraverserGeneratorFactory to use to generate traversers.
static EmptyTraversalStrategies	instance()
TraversalStrategies	removeStrategies(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.
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 org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategies

sortStrategies, visit

Method Detail

toList

public 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)

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

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(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()

Specified by:

clone in interface TraversalStrategies

Overrides:

clone in class Object

getTraverserGeneratorFactory

public TraverserGeneratorFactory getTraverserGeneratorFactory()

Description copied from interface: TraversalStrategies

Get the TraverserGeneratorFactory to use to generate traversers.

Specified by:

getTraverserGeneratorFactory in interface TraversalStrategies

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()