Package org.apache.tinkerpop.gremlin.process.traversal

Class TraversalStrategies.GlobalCache

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategies.GlobalCache

Enclosing interface:

TraversalStrategies

public static final class TraversalStrategies.GlobalCache
extends Object

Constructor Summary

Constructors

Constructor	Description
GlobalCache()

Method Summary

Modifier and Type	Method	Description
static Optional<? extends Class<? extends TraversalStrategy>>	getRegisteredStrategyClass(String strategyName)	Looks up a strategy by its simple name.
static TraversalStrategies	getStrategies(Class graphOrGraphComputerClass)
static void	registerStrategies(Class graphOrGraphComputerClass, TraversalStrategies traversalStrategies)	Register a set of strategies for a particular graph or graph computer class.
static void	registerStrategy(Class<? extends TraversalStrategy> clazz)	Registers a strategy by its simple name, but does not cache an instance of it.
static void	unregisterStrategy(Class<? extends TraversalStrategy> clazz)	Unregisters a strategy by its simple name.

Methods inherited from class java.lang.Object

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

Constructor Details

GlobalCache

public GlobalCache()

Method Details

registerStrategies

public static void registerStrategies(Class graphOrGraphComputerClass,
 TraversalStrategies traversalStrategies)

Register a set of strategies for a particular graph or graph computer class. This is typically done by the graph or graph computer class itself when it is loaded. Strategy names should be globally unique and are added to the GLOBAL_REGISTRY such that duplicates will overwrite the previous registration.

registerStrategy

public static void registerStrategy(Class<? extends TraversalStrategy> clazz)

Registers a strategy by its simple name, but does not cache an instance of it. Choose this method if you don't want the strategy to be included as part of the default strategy set, but do want it available to the grammar when parsing Gremlin.

unregisterStrategy

public static void unregisterStrategy(Class<? extends TraversalStrategy> clazz)

Unregisters a strategy by its simple name. If the strategy is not in the registry then the grammar cannot reference it which means that it cannot be removed from execution using {GraphTraversalSource.withoutStrategies(Class[])}.

getRegisteredStrategyClass

public static Optional<? extends Class<? extends TraversalStrategy>> getRegisteredStrategyClass(String strategyName)

Looks up a strategy by its simple name.

getStrategies

public static TraversalStrategies getStrategies(Class graphOrGraphComputerClass)