org.apache.flink.runtime.managementgraph

Class ManagementGate

java.lang.Object

org.apache.flink.runtime.managementgraph.ManagementAttachment

org.apache.flink.runtime.managementgraph.ManagementGate

public final class ManagementGate
extends ManagementAttachment

This class implements an input or output gate of a ManagementVertex. The gate is derived an input or output gate of the actual execution vertex.

This class is not thread-safe.

Constructor Summary

Constructors

Constructor and Description
ManagementGate(ManagementVertex managementVertex, ManagementGateID gateID, int index, boolean isInputGate) Constructs a new management gate.

Method Summary

Methods

Modifier and Type	Method and Description
ManagementEdge	getBackwardEdge(int index) Returns the edge arriving at the given index.
ManagementEdge	getForwardEdge(int index) Returns the edge originating at the given index.
ManagementGraph	getGraph() Returns the ManagementGraph this gate belongs to.
int	getIndex() Returns the index of this gate.
ManagementGateID	getManagementGateID() Returns the id of the management gate.
int	getNumberOfBackwardEdges() Returns the number of edges arriving at this gate.
int	getNumberOfForwardEdges() Returns the number of edges originating at this gate.
ManagementVertex	getVertex() Returns the vertex this gate belongs to.
boolean	isInputGate() Checks if this gate represents an input gate.

Methods inherited from class org.apache.flink.runtime.managementgraph.ManagementAttachment

getAttachment, setAttachment

Methods inherited from class java.lang.Object

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

Constructor Detail

ManagementGate

public ManagementGate(ManagementVertex managementVertex,
              ManagementGateID gateID,
              int index,
              boolean isInputGate)

Constructs a new management gate.

Parameters:

managementVertex - the management vertex this gate belongs to

index - the index of this gate

gateID - The id of the new management gate

isInputGate - true if this gate represents an input gate in the actual execution graph, false otherwise

Method Detail

isInputGate

public boolean isInputGate()

Checks if this gate represents an input gate.

Returns:

true if this gate represents an input gate in the actual execution graph, false otherwise

getGraph

public ManagementGraph getGraph()

Returns the ManagementGraph this gate belongs to.

Returns:

the management graph this gate belongs to

getNumberOfForwardEdges

public int getNumberOfForwardEdges()

Returns the number of edges originating at this gate.

Returns:

the number of edges originating at this gate

getNumberOfBackwardEdges

public int getNumberOfBackwardEdges()

Returns the number of edges arriving at this gate.

Returns:

the number of edges arriving at this gate

getIndex

public int getIndex()

Returns the index of this gate.

Returns:

the index of this gate

getForwardEdge

public ManagementEdge getForwardEdge(int index)

Returns the edge originating at the given index.

Parameters:

index - the index of the edge to be returned

Returns:

the edge at the given index or null if no such edge exists

getBackwardEdge

public ManagementEdge getBackwardEdge(int index)

Returns the edge arriving at the given index.

Parameters:

index - the index of the edge to be returned

Returns:

the edge at the given index or null if no such edge exists

getVertex

public ManagementVertex getVertex()

Returns the vertex this gate belongs to.

Returns:

the vertex this gate belongs to

getManagementGateID

public ManagementGateID getManagementGateID()

Returns the id of the management gate.

Returns:

the id of the management gate