com.tinkerpop.gremlin.structure.strategy

Class PartitionStrategy

java.lang.Object

com.tinkerpop.gremlin.structure.strategy.PartitionStrategy

All Implemented Interfaces:

GraphStrategy

public final class PartitionStrategy
extends java.lang.Object
implements GraphStrategy

A GraphStrategy which enables support for logical graph partitioning where the Graph can be blinded to different parts of the total Graph. Note that the partitionKey is hidden by this strategy. Use the base Graph to access that.

Author:

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

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	PartitionStrategy.Builder

Method Summary

Modifier and Type	Method and Description
void	addReadPartition(java.lang.String readPartition)
static PartitionStrategy.Builder	build()
void	clearReadPartitions()
java.util.function.UnaryOperator<TriFunction<java.lang.String,Vertex,java.lang.Object[],Edge>>	getAddEdgeStrategy(StrategyContext<StrategyVertex> ctx, GraphStrategy composingStrategy) Construct a TriFunction that enhances the features of Vertex.addEdge(String, com.tinkerpop.gremlin.structure.Vertex, Object...).
java.util.function.UnaryOperator<java.util.function.Function<java.lang.Object[],Vertex>>	getAddVertexStrategy(StrategyContext<StrategyGraph> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Graph.addVertex(Object...).
<V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String,Property<V>>>	getEdgeGetPropertyStrategy(StrategyContext<StrategyEdge> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Element.property(String).
<V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String[],java.util.Iterator<Property<V>>>>	getEdgeIteratorsPropertyIteratorStrategy(StrategyContext<StrategyEdge> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Edge.Iterators.propertyIterator(java.lang.String...).
<V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String[],java.util.Iterator<V>>>	getEdgeIteratorsValueIteratorStrategy(StrategyContext<StrategyEdge> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Element.Iterators.valueIterator(java.lang.String...).
java.util.function.UnaryOperator<java.util.function.Function<Direction,java.util.Iterator<Vertex>>>	getEdgeIteratorsVertexIteratorStrategy(StrategyContext<StrategyEdge> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Edge.Iterators.vertexIterator(com.tinkerpop.gremlin.structure.Direction).
java.util.function.UnaryOperator<java.util.function.Supplier<java.util.Set<java.lang.String>>>	getEdgeKeysStrategy(StrategyContext<StrategyEdge> ctx, GraphStrategy composingStrategy) Construct a Supplier that enhances the features of Element.keys().
java.util.function.UnaryOperator<java.util.function.Function<java.lang.Object[],GraphTraversal<Edge,Edge>>>	getGraphEStrategy(StrategyContext<StrategyGraph> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Graph.E(java.lang.Object...).
java.util.function.UnaryOperator<java.util.function.Function<java.lang.Object[],GraphTraversal<Vertex,Vertex>>>	getGraphVStrategy(StrategyContext<StrategyGraph> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Graph.V(java.lang.Object...).
java.lang.String	getPartitionKey()
java.util.Set<java.lang.String>	getReadPartitions()
<V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String,VertexProperty<V>>>	getVertexGetPropertyStrategy(StrategyContext<StrategyVertex> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Vertex.property(String).
java.util.function.UnaryOperator<java.util.function.BiFunction<Direction,java.lang.String[],java.util.Iterator<Edge>>>	getVertexIteratorsEdgeIteratorStrategy(StrategyContext<StrategyVertex> ctx, GraphStrategy composingStrategy) Construct a TriFunction that enhances the features of Vertex.Iterators.edgeIterator(com.tinkerpop.gremlin.structure.Direction, java.lang.String...).
<V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String[],java.util.Iterator<VertexProperty<V>>>>	getVertexIteratorsPropertyIteratorStrategy(StrategyContext<StrategyVertex> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Element.Iterators.propertyIterator(java.lang.String...).
<V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String[],java.util.Iterator<V>>>	getVertexIteratorsValueIteratorStrategy(StrategyContext<StrategyVertex> ctx, GraphStrategy composingStrategy) Construct a Function that enhances the features of Element.Iterators.valueIterator(java.lang.String...).
java.util.function.UnaryOperator<java.util.function.BiFunction<Direction,java.lang.String[],java.util.Iterator<Vertex>>>	getVertexIteratorsVertexIteratorStrategy(StrategyContext<StrategyVertex> ctx, GraphStrategy composingStrategy) Construct a TriFunction that enhances the features of Vertex.Iterators.vertexIterator(com.tinkerpop.gremlin.structure.Direction, java.lang.String...).
java.util.function.UnaryOperator<java.util.function.Supplier<java.util.Set<java.lang.String>>>	getVertexKeysStrategy(StrategyContext<StrategyVertex> ctx, GraphStrategy composingStrategy) Construct a Supplier that enhances the features of Element.keys().
java.lang.String	getWritePartition()
void	removeReadPartition(java.lang.String readPartition)
void	setWritePartition(java.lang.String writePartition)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.tinkerpop.gremlin.structure.strategy.GraphStrategy

getEdgeGraphStrategy, getEdgeIdStrategy, getEdgeLabelStrategy, getEdgePropertyStrategy, getEdgeValueStrategy, getGraphCloseStrategy, getGraphIteratorsEdgeIteratorStrategy, getGraphIteratorsVertexIteratorStrategy, getPropertyKeyStrategy, getPropertyValueStrategy, getRemoveEdgeStrategy, getRemovePropertyStrategy, getRemoveVertexPropertyStrategy, getRemoveVertexStrategy, getVariableAsMapStrategy, getVariableGetStrategy, getVariableKeysStrategy, getVariableRemoveStrategy, getVariableSetStrategy, getVertexGraphStrategy, getVertexIdStrategy, getVertexLabelStrategy, getVertexPropertyGetElementStrategy, getVertexPropertyGraphStrategy, getVertexPropertyIdStrategy, getVertexPropertyIteratorsPropertyIteratorStrategy, getVertexPropertyIteratorsValueIteratorStrategy, getVertexPropertyKeysStrategy, getVertexPropertyKeyStrategy, getVertexPropertyLabelStrategy, getVertexPropertyPropertyStrategy, getVertexPropertyStrategy, getVertexPropertyValueStrategy, getVertexValueStrategy

Method Detail

getWritePartition

public java.lang.String getWritePartition()

setWritePartition

public void setWritePartition(java.lang.String writePartition)

getPartitionKey

public java.lang.String getPartitionKey()

getReadPartitions

public java.util.Set<java.lang.String> getReadPartitions()

removeReadPartition

public void removeReadPartition(java.lang.String readPartition)

addReadPartition

public void addReadPartition(java.lang.String readPartition)

clearReadPartitions

public void clearReadPartitions()

getVertexIteratorsVertexIteratorStrategy

public java.util.function.UnaryOperator<java.util.function.BiFunction<Direction,java.lang.String[],java.util.Iterator<Vertex>>> getVertexIteratorsVertexIteratorStrategy(StrategyContext<StrategyVertex> ctx,
                                                                                                                                                                         GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a TriFunction that enhances the features of Vertex.Iterators.vertexIterator(com.tinkerpop.gremlin.structure.Direction, java.lang.String...).

Specified by:

getVertexIteratorsVertexIteratorStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a BiFunction with Vertex.Iterators.vertexIterator(com.tinkerpop.gremlin.structure.Direction, java.lang.String...) signature and returns an enhanced strategy Supplier with the same signature

getVertexIteratorsEdgeIteratorStrategy

public java.util.function.UnaryOperator<java.util.function.BiFunction<Direction,java.lang.String[],java.util.Iterator<Edge>>> getVertexIteratorsEdgeIteratorStrategy(StrategyContext<StrategyVertex> ctx,
                                                                                                                                                                     GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a TriFunction that enhances the features of Vertex.Iterators.edgeIterator(com.tinkerpop.gremlin.structure.Direction, java.lang.String...).

Specified by:

getVertexIteratorsEdgeIteratorStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a BiFunction with Vertex.Iterators.edgeIterator(com.tinkerpop.gremlin.structure.Direction, java.lang.String...) signature and returns an enhanced strategy Supplier with the same signature

getEdgeIteratorsVertexIteratorStrategy

public java.util.function.UnaryOperator<java.util.function.Function<Direction,java.util.Iterator<Vertex>>> getEdgeIteratorsVertexIteratorStrategy(StrategyContext<StrategyEdge> ctx,
                                                                                                                                                  GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Edge.Iterators.vertexIterator(com.tinkerpop.gremlin.structure.Direction).

Specified by:

getEdgeIteratorsVertexIteratorStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Edge.Iterators.vertexIterator(com.tinkerpop.gremlin.structure.Direction) signature and returns an enhanced strategy Supplier with the same signature

getGraphVStrategy

public java.util.function.UnaryOperator<java.util.function.Function<java.lang.Object[],GraphTraversal<Vertex,Vertex>>> getGraphVStrategy(StrategyContext<StrategyGraph> ctx,
                                                                                                                                         GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Graph.V(java.lang.Object...).

Specified by:

getGraphVStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Graph.V(java.lang.Object...) signature and returns an enhanced strategy Function with the same signature

getGraphEStrategy

public java.util.function.UnaryOperator<java.util.function.Function<java.lang.Object[],GraphTraversal<Edge,Edge>>> getGraphEStrategy(StrategyContext<StrategyGraph> ctx,
                                                                                                                                     GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Graph.E(java.lang.Object...).

Specified by:

getGraphEStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Graph.E(java.lang.Object...) signature and returns an enhanced strategy Function with the same signature

getVertexIteratorsPropertyIteratorStrategy

public <V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String[],java.util.Iterator<VertexProperty<V>>>> getVertexIteratorsPropertyIteratorStrategy(StrategyContext<StrategyVertex> ctx,
                                                                                                                                                                              GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Element.Iterators.propertyIterator(java.lang.String...).

Specified by:

getVertexIteratorsPropertyIteratorStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Element.Iterators.propertyIterator(java.lang.String...) signature and returns an enhanced strategy Supplier with the same signature

getVertexIteratorsValueIteratorStrategy

public <V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String[],java.util.Iterator<V>>> getVertexIteratorsValueIteratorStrategy(StrategyContext<StrategyVertex> ctx,
                                                                                                                                                           GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Element.Iterators.valueIterator(java.lang.String...).

Specified by:

getVertexIteratorsValueIteratorStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Element.Iterators.valueIterator(java.lang.String...) signature and returns an enhanced strategy Supplier with the same signature

getVertexKeysStrategy

public java.util.function.UnaryOperator<java.util.function.Supplier<java.util.Set<java.lang.String>>> getVertexKeysStrategy(StrategyContext<StrategyVertex> ctx,
                                                                                                                            GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Supplier that enhances the features of Element.keys().

Specified by:

getVertexKeysStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Supplier with Element.keys() signature and returns an enhanced strategy Supplier with the same signature

getVertexGetPropertyStrategy

public <V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String,VertexProperty<V>>> getVertexGetPropertyStrategy(StrategyContext<StrategyVertex> ctx,
                                                                                                                                          GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Vertex.property(String).

Specified by:

getVertexGetPropertyStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Vertex.property(String) signature and returns an enhanced strategy Function with the same signature

getEdgeGetPropertyStrategy

public <V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String,Property<V>>> getEdgeGetPropertyStrategy(StrategyContext<StrategyEdge> ctx,
                                                                                                                                  GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Element.property(String).

Specified by:

getEdgeGetPropertyStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Element.property(String) signature and returns an enhanced strategy Function with the same signature

getEdgeIteratorsPropertyIteratorStrategy

public <V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String[],java.util.Iterator<Property<V>>>> getEdgeIteratorsPropertyIteratorStrategy(StrategyContext<StrategyEdge> ctx,
                                                                                                                                                                      GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Edge.Iterators.propertyIterator(java.lang.String...).

Specified by:

getEdgeIteratorsPropertyIteratorStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Edge.Iterators.propertyIterator(java.lang.String...) signature and returns an enhanced strategy Supplier with the same signature

getEdgeIteratorsValueIteratorStrategy

public <V> java.util.function.UnaryOperator<java.util.function.Function<java.lang.String[],java.util.Iterator<V>>> getEdgeIteratorsValueIteratorStrategy(StrategyContext<StrategyEdge> ctx,
                                                                                                                                                         GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Element.Iterators.valueIterator(java.lang.String...).

Specified by:

getEdgeIteratorsValueIteratorStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Element.Iterators.valueIterator(java.lang.String...) signature and returns an enhanced strategy Supplier with the same signature

getEdgeKeysStrategy

public java.util.function.UnaryOperator<java.util.function.Supplier<java.util.Set<java.lang.String>>> getEdgeKeysStrategy(StrategyContext<StrategyEdge> ctx,
                                                                                                                          GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Supplier that enhances the features of Element.keys().

Specified by:

getEdgeKeysStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Supplier with Element.keys() signature and returns an enhanced strategy Supplier with the same signature

getAddVertexStrategy

public java.util.function.UnaryOperator<java.util.function.Function<java.lang.Object[],Vertex>> getAddVertexStrategy(StrategyContext<StrategyGraph> ctx,
                                                                                                                     GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a Function that enhances the features of Graph.addVertex(Object...).

Specified by:

getAddVertexStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a Function with Graph.addVertex(Object...) signature and returns an enhanced strategy Function with the same signature

getAddEdgeStrategy

public java.util.function.UnaryOperator<TriFunction<java.lang.String,Vertex,java.lang.Object[],Edge>> getAddEdgeStrategy(StrategyContext<StrategyVertex> ctx,
                                                                                                                         GraphStrategy composingStrategy)

Description copied from interface: GraphStrategy

Construct a TriFunction that enhances the features of Vertex.addEdge(String, com.tinkerpop.gremlin.structure.Vertex, Object...).

Specified by:

getAddEdgeStrategy in interface GraphStrategy

Parameters:

ctx - the context within which this strategy function is called

composingStrategy - the strategy that composed this strategy function

Returns:

a Function that accepts a TriFunction with Vertex.addEdge(String, com.tinkerpop.gremlin.structure.Vertex, Object...) signature and returns an enhanced strategy Function with the same signature

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

build

public static PartitionStrategy.Builder build()