org.apache.hadoop.yarn.api.records

Class NodeId

java.lang.Object

org.apache.hadoop.yarn.api.records.NodeId

All Implemented Interfaces:

Comparable<NodeId>

@InterfaceAudience.Public
@InterfaceStability.Stable
public abstract class NodeId
extends Object
implements Comparable<NodeId>

NodeId is the unique identifier for a node.

It includes the hostname and port to uniquely identify the node. Thus, it is unique across restarts of any NodeManager.

Constructor Summary

Constructors

Constructor and Description
NodeId()

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract void	build()
int	compareTo(NodeId other)
boolean	equals(Object obj)
static NodeId	fromString(String nodeIdStr)
abstract String	getHost() Get the hostname of the node.
abstract int	getPort() Get the port for communicating with the node.
int	hashCode()
static NodeId	newInstance(String host, int port)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

NodeId

public NodeId()

Method Detail

newInstance

@InterfaceAudience.Public
@InterfaceStability.Stable
public static NodeId newInstance(String host,
                                                                    int port)

getHost

@InterfaceAudience.Public
@InterfaceStability.Stable
public abstract String getHost()

Get the hostname of the node.

Returns:

hostname of the node

getPort

@InterfaceAudience.Public
@InterfaceStability.Stable
public abstract int getPort()

Get the port for communicating with the node.

Returns:

port for communicating with the node

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

compareTo

public int compareTo(NodeId other)

Specified by:

compareTo in interface Comparable<NodeId>

fromString

@InterfaceAudience.Public
@InterfaceStability.Stable
public static NodeId fromString(String nodeIdStr)

build

protected abstract void build()