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

Class SubgraphStrategy

java.lang.Object

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

org.apache.tinkerpop.gremlin.process.traversal.strategy.decoration.SubgraphStrategy

All Implemented Interfaces:

Serializable, Comparable<Class<? extends TraversalStrategy>>, TraversalStrategy<TraversalStrategy.DecorationStrategy>, TraversalStrategy.DecorationStrategy

public final class SubgraphStrategy
extends AbstractTraversalStrategy<TraversalStrategy.DecorationStrategy>
implements TraversalStrategy.DecorationStrategy

This TraversalStrategy provides a way to limit the view of a Traversal. By providing Traversal representations that represent a form of filtering criterion for vertices and/or edges, this strategy will inject that criterion into the appropriate places of a traversal thus restricting what it traverses and returns.

Author:

Stephen Mallette (http://stephen.genoprime.com), Marko A. Rodriguez (http://markorodriguez.com)

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SubgraphStrategy.Builder

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

TraversalStrategy.DecorationStrategy, TraversalStrategy.FinalizationStrategy, TraversalStrategy.OptimizationStrategy, TraversalStrategy.ProviderOptimizationStrategy, TraversalStrategy.VerificationStrategy

Field Summary

Fields

Modifier and Type	Field	Description
static String	CHECK_ADJACENT_VERTICES
static String	EDGES
static String	VERTEX_PROPERTIES
static String	VERTICES

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

STRATEGY

Method Summary

Modifier and Type	Method	Description
void	apply(Traversal.Admin<?,?> traversal)
Set<Class<? extends TraversalStrategy.DecorationStrategy>>	applyPost()	The set of strategies that must be executed after this strategy is executed.
static SubgraphStrategy.Builder	build()
static SubgraphStrategy	create(org.apache.commons.configuration2.Configuration configuration)
org.apache.commons.configuration2.Configuration	getConfiguration()	Get the configuration representation of this strategy.
Traversal<Edge,?>	getEdgeCriterion()
Traversal<Vertex,?>	getVertexCriterion()
Traversal<VertexProperty,?>	getVertexPropertyCriterion()

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

equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

applyPrior

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy.DecorationStrategy

compareTo, getTraversalCategory

Field Detail

VERTICES

public static final String VERTICES

See Also:

Constant Field Values

EDGES

public static final String EDGES

See Also:

Constant Field Values

VERTEX_PROPERTIES

public static final String VERTEX_PROPERTIES

See Also:

Constant Field Values

CHECK_ADJACENT_VERTICES

public static final String CHECK_ADJACENT_VERTICES

See Also:

Constant Field Values

Method Detail

apply

public void apply(Traversal.Admin<?,?> traversal)

Specified by:

apply in interface TraversalStrategy<TraversalStrategy.DecorationStrategy>

getConfiguration

public org.apache.commons.configuration2.Configuration getConfiguration()

Description copied from interface: TraversalStrategy

Get the configuration representation of this strategy. This is useful for converting a strategy into a serialized form.

Specified by:

getConfiguration in interface TraversalStrategy<TraversalStrategy.DecorationStrategy>

Returns:

the configuration used to create this strategy

applyPost

public Set<Class<? extends TraversalStrategy.DecorationStrategy>> applyPost()

Description copied from interface: TraversalStrategy

The set of strategies that must be executed after this strategy is executed. If there are no ordering requirements, the default implementation returns an empty set.

Specified by:

applyPost in interface TraversalStrategy<TraversalStrategy.DecorationStrategy>

Returns:

the set of strategies that must be executed post this one

getVertexCriterion

public Traversal<Vertex,?> getVertexCriterion()

getEdgeCriterion

public Traversal<Edge,?> getEdgeCriterion()

getVertexPropertyCriterion

public Traversal<VertexProperty,?> getVertexPropertyCriterion()

create

public static SubgraphStrategy create(org.apache.commons.configuration2.Configuration configuration)

build

public static SubgraphStrategy.Builder build()