org.apache.spark.graphx
Class TripletFields

Object
  org.apache.spark.graphx.TripletFields

All Implemented Interfaces:

java.io.Serializable

public class TripletFields
extends Object
implements java.io.Serializable

Represents a subset of the fields of an [[EdgeTriplet]] or [[EdgeContext]]. This allows the system to populate only those fields for efficiency.

See Also:

Serialized Form

Field Summary

static TripletFields	All Expose all the fields (source, edge, and destination).
static TripletFields	Dst Expose the destination and edge fields but not the source field.
static TripletFields	EdgeOnly Expose only the edge field and not the source or destination field.
static TripletFields	None None of the triplet fields are exposed.
static TripletFields	Src Expose the source and edge fields but not the destination field.
boolean	useDst Indicates whether the destination vertex attribute is included.
boolean	useEdge Indicates whether the edge attribute is included.
boolean	useSrc Indicates whether the source vertex attribute is included.

Constructor Summary

TripletFields()
Constructs a default TripletFields in which all fields are included.

TripletFields(boolean useSrc, boolean useDst, boolean useEdge)

Method Summary

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

useSrc

public final boolean useSrc

Indicates whether the source vertex attribute is included.

useDst

public final boolean useDst

Indicates whether the destination vertex attribute is included.

useEdge

public final boolean useEdge

Indicates whether the edge attribute is included.

None

public static final TripletFields None

None of the triplet fields are exposed.

EdgeOnly

public static final TripletFields EdgeOnly

Expose only the edge field and not the source or destination field.

Src

public static final TripletFields Src

Expose the source and edge fields but not the destination field. (Same as Src)

Dst

public static final TripletFields Dst

Expose the destination and edge fields but not the source field. (Same as Dst)

All

public static final TripletFields All

Expose all the fields (source, edge, and destination).

Constructor Detail

TripletFields

public TripletFields()

Constructs a default TripletFields in which all fields are included.

TripletFields

public TripletFields(boolean useSrc,
                     boolean useDst,
                     boolean useEdge)