Package org.apache.hadoop.net

Interface InnerNode

All Superinterfaces:

Node

All Known Implementing Classes:

InnerNodeImpl

@LimitedPrivate({"HDFS","MapReduce"})
@Unstable
public interface InnerNode
extends Node

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	InnerNode.Factory<N extends InnerNode>

Method Summary

Modifier and Type	Method	Description
boolean	add(Node n)	Add node n to the subtree of this node
java.util.List<Node>	getChildren()
Node	getLeaf(int leafIndex, Node excludedNode)	get leafIndex leaf of this subtree if it is not in the excludedNode
Node	getLoc(java.lang.String loc)	Given a node's string representation, return a reference to the node
int	getNumOfChildren()
int	getNumOfLeaves()
boolean	remove(Node n)	Remove node n from the subtree of this node

Methods inherited from interface org.apache.hadoop.net.Node

getLevel, getName, getNetworkLocation, getParent, setLevel, setNetworkLocation, setParent

Method Detail

add

boolean add(Node n)

Add node n to the subtree of this node

Parameters:

n - node to be added

Returns:

true if the node is added; false otherwise

getLoc

Node getLoc(java.lang.String loc)

Given a node's string representation, return a reference to the node

Parameters:

loc - string location of the form /rack/node

Returns:

null if the node is not found or the childnode is there but not an instance of InnerNodeImpl

getChildren

java.util.List<Node> getChildren()

Returns:

its children

getNumOfChildren

int getNumOfChildren()

Returns:

the number of children this node has.

getNumOfLeaves

int getNumOfLeaves()

Returns:

the number of leave nodes.

remove

boolean remove(Node n)

Remove node n from the subtree of this node

Parameters:

n - node to be deleted

Returns:

true if the node is deleted; false otherwise

getLeaf

Node getLeaf(int leafIndex,
             Node excludedNode)

get leafIndex leaf of this subtree if it is not in the excludedNode

Parameters:

leafIndex - an indexed leaf of the node

excludedNode - an excluded node (can be null)

Returns:

the leaf node corresponding to the given index.