org.apache.hadoop.net
Interface Node

All Known Implementing Classes:

DatanodeDescriptor, DatanodeInfo, NodeBase

public interface Node

The interface defines a node in a network topology. A node may be a leave representing a data node or an inner node representing a datacenter or rack. Each data has a name and its location in the network is decided by a string with syntax similar to a file name. For example, a data node's name is hostname:port# and if it's located at rack "orange" in datacenter "dog", the string representation of its network location is /dog/orange

Author:

hairong

Method Summary

int	getLevel() Return this node's level in the tree.
String	getName() Return this node's name
String	getNetworkLocation() Return the string representation of this node's network location
Node	getParent() Return this node's parent

Method Detail

getNetworkLocation

String getNetworkLocation()

Return the string representation of this node's network location

getName

String getName()

Return this node's name

getParent

Node getParent()

Return this node's parent

getLevel

int getLevel()

Return this node's level in the tree. E.g. the root of a tree returns 0 and its children return 1