ai.grakn.graql.internal.analytics

Class CountVertexProgram

java.lang.Object

ai.grakn.graql.internal.analytics.CommonOLAP

ai.grakn.graql.internal.analytics.GraknVertexProgram<Long>

ai.grakn.graql.internal.analytics.CountVertexProgram

All Implemented Interfaces:

Cloneable, org.apache.tinkerpop.gremlin.process.computer.VertexProgram<Long>

public class CountVertexProgram
extends GraknVertexProgram<Long>

The vertex program for counting concepts.

Author:

Jason Liu

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.process.computer.VertexProgram

org.apache.tinkerpop.gremlin.process.computer.VertexProgram.Builder, org.apache.tinkerpop.gremlin.process.computer.VertexProgram.Features

Field Summary

Fields

Modifier and Type	Field and Description
static String	EDGE_COUNT

Fields inherited from interface org.apache.tinkerpop.gremlin.process.computer.VertexProgram

VERTEX_PROGRAM

Constructor Summary

Constructors

Constructor and Description
CountVertexProgram()

Method Summary

Modifier and Type	Method and Description
Set<org.apache.tinkerpop.gremlin.process.computer.MessageScope>	getMessageScopes(org.apache.tinkerpop.gremlin.process.computer.Memory memory)
Set<org.apache.tinkerpop.gremlin.process.computer.VertexComputeKey>	getVertexComputeKeys()
void	safeExecute(org.apache.tinkerpop.gremlin.structure.Vertex vertex, org.apache.tinkerpop.gremlin.process.computer.Messenger<Long> messenger, org.apache.tinkerpop.gremlin.process.computer.Memory memory) An alternative to the execute method when ghost vertices are an issue.
boolean	terminate(org.apache.tinkerpop.gremlin.process.computer.Memory memory)

Methods inherited from class ai.grakn.graql.internal.analytics.GraknVertexProgram

clone, execute, getPreferredPersist, getPreferredResultGraph, setup, storeState

Methods inherited from class ai.grakn.graql.internal.analytics.CommonOLAP

loadState, 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.computer.VertexProgram

createVertexProgram, getFeatures, getMapReducers, getMemoryComputeKeys, getMessageCombiner, getTraverserRequirements, loadState, workerIterationEnd, workerIterationStart

Field Detail

EDGE_COUNT

public static final String EDGE_COUNT

See Also:

Constant Field Values

Constructor Detail

CountVertexProgram

public CountVertexProgram()

Method Detail

getVertexComputeKeys

public Set<org.apache.tinkerpop.gremlin.process.computer.VertexComputeKey> getVertexComputeKeys()

getMessageScopes

public Set<org.apache.tinkerpop.gremlin.process.computer.MessageScope> getMessageScopes(org.apache.tinkerpop.gremlin.process.computer.Memory memory)

Specified by:

getMessageScopes in interface org.apache.tinkerpop.gremlin.process.computer.VertexProgram<Long>

Overrides:

getMessageScopes in class GraknVertexProgram<Long>

safeExecute

public void safeExecute(org.apache.tinkerpop.gremlin.structure.Vertex vertex,
                        org.apache.tinkerpop.gremlin.process.computer.Messenger<Long> messenger,
                        org.apache.tinkerpop.gremlin.process.computer.Memory memory)

Description copied from class: GraknVertexProgram

An alternative to the execute method when ghost vertices are an issue. Our "Ghostbuster".

Parameters:

vertex - a vertex that may be a ghost

messenger - Tinker message passing object

memory - Tinker memory object

terminate

public boolean terminate(org.apache.tinkerpop.gremlin.process.computer.Memory memory)