ai.grakn.graql.internal.analytics

Class DegreeAndPersistVertexProgram

java.lang.Object

ai.grakn.graql.internal.analytics.CommonOLAP

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

ai.grakn.graql.internal.analytics.DegreeAndPersistVertexProgram

All Implemented Interfaces:

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

public class DegreeAndPersistVertexProgram
extends GraknVertexProgram<Long>

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

analyticsElements

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

VERTEX_PROGRAM

Constructor Summary

Constructors

Constructor and Description
DegreeAndPersistVertexProgram()
DegreeAndPersistVertexProgram(Set<String> types, String keySpace)

Method Summary

Modifier and Type	Method and Description
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)
void	workerIterationEnd(org.apache.tinkerpop.gremlin.process.computer.Memory memory)
void	workerIterationStart(org.apache.tinkerpop.gremlin.process.computer.Memory memory)

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

clone, execute, getMessageScopes, 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, getVertexComputeKeys, loadState

Constructor Detail

DegreeAndPersistVertexProgram

public DegreeAndPersistVertexProgram()

DegreeAndPersistVertexProgram

public DegreeAndPersistVertexProgram(Set<String> types,
                                     String keySpace)

Method Detail

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

workerIterationStart

public void workerIterationStart(org.apache.tinkerpop.gremlin.process.computer.Memory memory)

workerIterationEnd

public void workerIterationEnd(org.apache.tinkerpop.gremlin.process.computer.Memory memory)

terminate

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