Package uk.gov.gchq.gaffer.tinkerpop.process.traversal.strategy.optimisation

Class GafferPopGraphStepStrategy

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy<org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.ProviderOptimizationStrategy>

uk.gov.gchq.gaffer.tinkerpop.process.traversal.strategy.optimisation.GafferPopGraphStepStrategy

All Implemented Interfaces:

Serializable, Comparable<Class<? extends org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy>>, org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy<org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.ProviderOptimizationStrategy>, org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.ProviderOptimizationStrategy

public final class GafferPopGraphStepStrategy
extends org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy<org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.ProviderOptimizationStrategy>
implements org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.ProviderOptimizationStrategy

The GraphStep strategy for GafferPop, this will replace the default GraphStep of a query to add Gaffer optimisations. Such as gathering any HasSteps so that a Gaffer View can be constructed for the query. Will also handle the translation of Cypher queries passed via a with() step in the Gremlin traversal.

 g.V().hasLabel()    // replaced by GafferPopGraphStep
 g.E().hasLabel()    // replaced by GafferPopGraphStep
 g.with("cypher", "query") // translated to Gremlin traversal
 

See Also:

Serialized Form

Nested Class Summary

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

org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.DecorationStrategy, org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.FinalizationStrategy, org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.OptimizationStrategy, org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.ProviderOptimizationStrategy, org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.VerificationStrategy

Field Summary

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

STRATEGY

Method Summary

Modifier and Type	Method	Description
void	apply(org.apache.tinkerpop.gremlin.process.traversal.Traversal.Admin<?,?> traversal)
static GafferPopGraphStepStrategy	instance()

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.strategy.AbstractTraversalStrategy

equals, hashCode, toString

Methods inherited from class java.lang.Object

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.ProviderOptimizationStrategy

compareTo, getTraversalCategory

Method Detail

apply

public void apply(org.apache.tinkerpop.gremlin.process.traversal.Traversal.Admin<?,?> traversal)

Specified by:

apply in interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy<org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.ProviderOptimizationStrategy>

instance

public static GafferPopGraphStepStrategy instance()