Package org.jgrapht.traverse

Interface GraphIterator<V,E>

Type Parameters:

V - the graph vertex type

E - the graph edge type

All Superinterfaces:

Iterator<V>

All Known Implementing Classes:

AbstractGraphIterator, BreadthFirstIterator, ClosestFirstIterator, CrossComponentIterator, DegeneracyOrderingIterator, DepthFirstIterator, LexBreadthFirstIterator, MaximumCardinalityIterator, RandomWalkIterator, TopologicalOrderIterator

public interface GraphIterator<V,E>
extends Iterator<V>

A graph iterator.

Author:

Barak Naveh

Method Summary

Modifier and Type	Method	Description
void	addTraversalListener(TraversalListener<V,E> l)	Adds the specified traversal listener to this iterator.
boolean	isCrossComponentTraversal()	Test whether this iterator is set to traverse the graph across connected components.
boolean	isReuseEvents()	Tests whether the reuseEvents flag is set.
void	remove()	Unsupported.
void	removeTraversalListener(TraversalListener<V,E> l)	Removes the specified traversal listener from this iterator.
void	setReuseEvents(boolean reuseEvents)	Sets a value the reuseEvents flag.

Methods inherited from interface java.util.Iterator

forEachRemaining, hasNext, next

Method Detail

isCrossComponentTraversal

boolean isCrossComponentTraversal()

Test whether this iterator is set to traverse the graph across connected components.

Returns:

true if traverses across connected components, otherwise false.

isReuseEvents

boolean isReuseEvents()

Tests whether the reuseEvents flag is set. If the flag is set to true this class will reuse previously fired events and will not create a new object for each event. This option increases performance but should be used with care, especially in multithreaded environment.

Returns:

the value of the reuseEvents flag.

setReuseEvents

void setReuseEvents(boolean reuseEvents)

Sets a value the reuseEvents flag. If the reuseEvents flag is set to true this class will reuse previously fired events and will not create a new object for each event. This option increases performance but should be used with care, especially in multithreaded environment.

Parameters:

reuseEvents - whether to reuse previously fired event objects instead of creating a new event object for each event.

addTraversalListener

void addTraversalListener(TraversalListener<V,E> l)

Adds the specified traversal listener to this iterator.

Parameters:

l - the traversal listener to be added.

removeTraversalListener

void removeTraversalListener(TraversalListener<V,E> l)

Removes the specified traversal listener from this iterator.

Parameters:

l - the traversal listener to be removed.

remove

void remove()

Unsupported.

Specified by:

remove in interface Iterator<V>

Throws:

UnsupportedOperationException - always since operation is not supported