org.apache.tez.dag.api
Class GroupInputEdge

java.lang.Object
  org.apache.tez.dag.api.GroupInputEdge

public class GroupInputEdge
extends Object

Constructor Summary

GroupInputEdge(VertexGroup inputVertexGroup, Vertex outputVertex, EdgeProperty edgeProperty, InputDescriptor mergedInput)
An Edge that connects a VertexGroup to a destination Vertex.

Method Summary

EdgeProperty	getEdgeProperty()
String	getId()
VertexGroup	getInputVertexGroup()
Vertex	getOutputVertex()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupInputEdge

public GroupInputEdge(VertexGroup inputVertexGroup,
                      Vertex outputVertex,
                      EdgeProperty edgeProperty,
                      InputDescriptor mergedInput)

An Edge that connects a VertexGroup to a destination Vertex. The framework takes care of connecting the VertexGroup members with the destination vertex. The tasks of the destination vertex see only 1 input named after the VertexGroup instead of individual inputs from group members. These individual inputs are merged using the mergedInput before presenting them to the destination task.

Parameters:

inputVertexGroup - source VertexGroup

outputVertex - destination Vertex

edgeProperty - edge properties

mergedInput - MergedLogicalInput

Method Detail

getInputVertexGroup

public VertexGroup getInputVertexGroup()

getOutputVertex

public Vertex getOutputVertex()

getEdgeProperty

public EdgeProperty getEdgeProperty()

getId

@InterfaceAudience.Private
public String getId()

toString

public String toString()

Overrides:

toString in class Object