net.walend.digraph
Class AbstractHashUEDigraph.HashEdgeIterator

java.lang.Object
  |
  +--net.walend.digraph.AbstractHashUEDigraph.HashEdgeIterator

All Implemented Interfaces:

EdgeIterator, EdgeNodeIterator

Enclosing class:

AbstractHashUEDigraph

protected class AbstractHashUEDigraph.HashEdgeIterator

extends java.lang.Object

implements EdgeIterator

Field Summary

private java.lang.Object	currentEdge
private java.util.Iterator	it

Constructor Summary

protected

AbstractHashUEDigraph.HashEdgeIterator()

Method Summary

private void	checkState()
java.lang.Object	edge() Returns the current edge.
java.lang.Object	fromNode() Returns the node that his edge begins at.
boolean	hasNext() Returns true if there are more edges in this iterator.
void	next() Advances to the next edge in the iterator.
void	remove() Removes the current edge from the digraph.
java.lang.Object	toNode() Returns the node that this edge reaches.

Methods inherited from class java.lang.Object

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

Field Detail

it

private java.util.Iterator it

currentEdge

private java.lang.Object currentEdge

Constructor Detail

AbstractHashUEDigraph.HashEdgeIterator

protected AbstractHashUEDigraph.HashEdgeIterator()

Method Detail

hasNext

public boolean hasNext()

Returns true if there are more edges in this iterator.

Specified by:

hasNext in interface EdgeNodeIterator

next

public void next()

Advances to the next edge in the iterator.

Specified by:

next in interface EdgeNodeIterator

Throws:

NoSuchElementException - if the iterator has nothing left.

remove

public void remove()

Removes the current edge from the digraph.

Specified by:

remove in interface EdgeNodeIterator

Throws:

java.lang.UnsupportedOperationException - if the digraph is immutable.

java.lang.IllegalStateException - if the next method has not yet been called, or the remove method has already been called after the last call to the next method.

checkState

private void checkState()

fromNode

public java.lang.Object fromNode()

Returns the node that his edge begins at.

Specified by:

fromNode in interface EdgeNodeIterator

Throws:

java.lang.IllegalStateException - if the next method has not yet been called, or the remove method has already been called after the last call to the next method.

toNode

public java.lang.Object toNode()

Returns the node that this edge reaches.

Specified by:

toNode in interface EdgeNodeIterator

Throws:

java.lang.IllegalStateException - if the next method has not yet been called, or the remove method has already been called after the last call to the next method.

edge

public java.lang.Object edge()

Returns the current edge.

Specified by:

edge in interface EdgeIterator

Throws:

java.lang.IllegalStateException - if the next method has not yet been called, or the remove method has already been called after the last call to the next method.