Package com.jgalgo.graph

Interface IEdgeIter

All Superinterfaces:

EdgeIter<Integer,Integer>, IntIterator, Iterator<Integer>, PrimitiveIterator<Integer,IntConsumer>, PrimitiveIterator.OfInt

public interface IEdgeIter
extends EdgeIter<Integer,Integer>, IntIterator

Iterator used to iterate over int graph edges.

This interface is a specific version of EdgeIter for IntGraph.

Each int returned by IntIterator.nextInt() is an ID of an edge iterated by the iterator. The source and target of the last iterated edge are available by sourceInt() and targetInt().

 
 IntGraph g = ...;
 int vertex = ...;
 for (IEdgeIter eit = g.outEdges(vertex).iterator(); eit.hasNext();) {
 	int e = eit.nextInt();
 	int u = eit.sourceInt();
 	int v = eit.targetInt();
 	assert vertex == u;
 	System.out.println("Out edge of " + vertex + ": " + e + "(" + u + ", " + v + ")");
 }
 

Author:

Barak Ugav

See Also:

IEdgeSet

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.PrimitiveIterator

PrimitiveIterator.OfDouble, PrimitiveIterator.OfInt, PrimitiveIterator.OfLong

Method Summary

Modifier and Type	Method	Description
default Integer	peekNext()	Deprecated. Please use peekNextInt() instead to avoid un/boxing.
int	peekNextInt()	Peek at the next edge of the iterator without advancing it.
default Integer	source()	Deprecated. Please use sourceInt() instead to avoid un/boxing.
int	sourceInt()	Get the source vertex of the last returned edge.
default Integer	target()	Deprecated. Please use targetInt() instead to avoid un/boxing.
int	targetInt()	Get the target vertex of the last returned edge.

Methods inherited from interface it.unimi.dsi.fastutil.ints.IntIterator

forEachRemaining, forEachRemaining, next, nextInt, skip

Methods inherited from interface java.util.Iterator

hasNext, remove

Methods inherited from interface java.util.PrimitiveIterator.OfInt

forEachRemaining

Method Detail

peekNextInt

int peekNextInt()

Peek at the next edge of the iterator without advancing it.

Similar to IntIterator.nextInt() but without advancing the iterator.

Returns:

the next edge of the iterator

Throws:

NoSuchElementException - if there is no 'next' element

peekNext

@Deprecated
default Integer peekNext()

Deprecated.

Please use peekNextInt() instead to avoid un/boxing.

Peek at the next edge of the iterator without advancing it.

Similar to Iterator.next() but without advancing the iterator.

Specified by:

peekNext in interface EdgeIter<Integer,Integer>

Returns:

the next edge of the iterator

sourceInt

int sourceInt()

Get the source vertex of the last returned edge.

The behavior is undefined if IntIterator.nextInt() was not called yet.

Returns:

the source vertex of the last returned edge

source

@Deprecated
default Integer source()

Deprecated.

Please use sourceInt() instead to avoid un/boxing.

Get the source vertex of the last returned edge.

The behavior is undefined if Iterator.next() was not called yet.

Specified by:

source in interface EdgeIter<Integer,Integer>

Returns:

the source vertex of the last returned edge

targetInt

int targetInt()

Get the target vertex of the last returned edge.

The behavior is undefined if IntIterator.nextInt() was not called yet.

Returns:

the target vertex of the last returned edge

target

@Deprecated
default Integer target()

Deprecated.

Please use targetInt() instead to avoid un/boxing.

Get the target vertex of the last returned edge.

The behavior is undefined if Iterator.next() was not called yet.

Specified by:

target in interface EdgeIter<Integer,Integer>

Returns:

the target vertex of the last returned edge