net.walend.digraph.path
Class AbstractDelegateDigraphOfGEPaths.DigraphGEPath.PathEdgeNodeIterator

java.lang.Object
  |
  +--net.walend.digraph.path.AbstractDelegateDigraphOfGEPaths.DigraphGEPath.PathEdgeNodeIterator

All Implemented Interfaces:

EdgeNodeIterator

Enclosing class:

AbstractDelegateDigraphOfGEPaths.DigraphGEPath

protected class AbstractDelegateDigraphOfGEPaths.DigraphGEPath.PathEdgeNodeIterator

extends java.lang.Object

implements EdgeNodeIterator

Field Summary

private java.lang.Object	fromNode
private boolean	nextCalled
private int	tailIndex
private java.lang.Object	tailNode
private java.lang.Object	toNode

Constructor Summary

protected

AbstractDelegateDigraphOfGEPaths.DigraphGEPath.PathEdgeNodeIterator(java.lang.Object headNode, java.lang.Object tailNode)

Method Summary

private void	checkNextCalled()
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

fromNode

private java.lang.Object fromNode

toNode

private java.lang.Object toNode

tailNode

private java.lang.Object tailNode

nextCalled

private boolean nextCalled

tailIndex

private int tailIndex

Constructor Detail

AbstractDelegateDigraphOfGEPaths.DigraphGEPath.PathEdgeNodeIterator

protected AbstractDelegateDigraphOfGEPaths.DigraphGEPath.PathEdgeNodeIterator(java.lang.Object headNode,
                                                                              java.lang.Object tailNode)
                                                                       throws NodeMissingException

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:

java.util.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.

checkNextCalled

private void checkNextCalled()

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.