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

Class DefaultTraversalStrategies

java.lang.Object

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

All Implemented Interfaces:

Serializable, Cloneable, TraversalStrategies

public class DefaultTraversalStrategies
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

Modifier and Type	Field and Description
protected List<TraversalStrategy<?>>	traversalStrategies

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

STRATEGY_CATEGORIES

Constructor Summary

Constructors

Constructor and Description
DefaultTraversalStrategies()

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.
DefaultTraversalStrategies	clone()
<T extends TraversalStrategy> Optional<T>	getStrategy(Class<T> traversalStrategyClass) Return the TraversalStrategy instance associated with the provided class.
TraversalStrategies	removeStrategies(Class<? extends TraversalStrategy>... strategyClasses) Remove all the provided TraversalStrategy classes from the current collection.
List<TraversalStrategy<?>>	toList() Return all the TraversalStrategy singleton instances associated with this TraversalStrategies.
String	toString()

Methods inherited from class java.lang.Object

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

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

sortStrategies, visit

Field Detail

traversalStrategies

protected List<TraversalStrategy<?>> traversalStrategies

Constructor Detail

DefaultTraversalStrategies

public DefaultTraversalStrategies()

Method Detail

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

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

getStrategy

public <T extends TraversalStrategy> Optional<T> getStrategy(Class<T> traversalStrategyClass)

Description copied from interface: TraversalStrategies

Return the TraversalStrategy instance associated with the provided class.

Specified by:

getStrategy in interface TraversalStrategies

Type Parameters:

T - the strategy class type

Parameters:

traversalStrategyClass - the class of the strategy to get

Returns:

an optional containing the strategy instance or not

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

clone

public DefaultTraversalStrategies clone()

Specified by:

clone in interface TraversalStrategies

Overrides:

clone in class Object

toString

public String toString()

Overrides:

toString in class Object