javaslam.tjt.graph
Class BreadthFirstTraversal

java.lang.Object
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  +--javaslam.tjt.graph.Traversal
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        +--javaslam.tjt.graph.BreadthFirstTraversal

public class BreadthFirstTraversal

extends Traversal

An iterator that traverses the nodes of a graph in breadth-first (siblings before children) order.

Field Summary

protected LinkedList

queue A queue of nodes to be visited in this search.

Fields inherited from class javaslam.tjt.graph.Traversal

current, cycle, edges

Constructor Summary

BreadthFirstTraversal(Node n)
Constructor.

Method Summary

protected Node	dequeue() Dequeues a node to visit.
protected void	enqueue(Node n) Enqueues a node for later visit.
boolean	hasNext() Returns true if the iteration has more elements.

Methods inherited from class javaslam.tjt.graph.Traversal

current, edge, isCyclic, next, path, size

Methods inherited from class java.lang.Object

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

Field Detail

queue

protected LinkedList queue

A queue of nodes to be visited in this search.

Constructor Detail

BreadthFirstTraversal

public BreadthFirstTraversal(Node n)

Constructor.

Parameters:

n - the node from which to start the traversal; this will be the first node returned by the iterator

Method Detail

hasNext

public boolean hasNext()

Returns true if the iteration has more elements. (In other words, returns true if next would return an element rather than throwing an exception.)

Specified by:

hasNext in class Traversal

enqueue

protected void enqueue(Node n)

Enqueues a node for later visit.

Specified by:

enqueue in class Traversal

dequeue

protected Node dequeue()

Dequeues a node to visit.

Specified by:

dequeue in class Traversal