ai.grakn.graql.internal.analytics

Class DegreeVertexProgram

java.lang.Object

ai.grakn.graql.internal.analytics.CommonOLAP

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

ai.grakn.graql.internal.analytics.DegreeVertexProgram

All Implemented Interfaces:

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

public class DegreeVertexProgram
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

Modifier and Type	Field and Description
static String	DEGREE

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
DegreeVertexProgram()
DegreeVertexProgram(Set<String> types)

Method Summary

Modifier and Type	Method and Description
Set<String>	getElementComputeKeys()
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, 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, workerIterationEnd, workerIterationStart

Field Detail

DEGREE

public static final String DEGREE

See Also:

Constant Field Values

Constructor Detail

DegreeVertexProgram

public DegreeVertexProgram()

DegreeVertexProgram

public DegreeVertexProgram(Set<String> types)

Method Detail

getElementComputeKeys

public Set<String> getElementComputeKeys()

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)