EdgeIter (JGAlgo - Parent 0.2.0 API)

All Superinterfaces:

IntIterator, Iterator<Integer>, PrimitiveIterator<Integer,IntConsumer>, PrimitiveIterator.OfInt
```
public interface EdgeIter
extends IntIterator
```
Iterator used to iterate over edges of a vertex.
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 source() and target().
```
 
 Graph g = ...;
 int vertex = ...;
 for (EdgeIter eit = g.outEdges(vertex).iterator(); eit.hasNext();) {
 	int e = eit.nextInt();
 	int u = eit.source();
 	int v = eit.target();
 	assert vertex == u;
 	System.out.println("Out edge of " + vertex + ": " + e + "(" + u + ", " + v + ")");
 }
 
```
Author:

Barak Ugav

See Also:

EdgeSet

Nested Class Summary
- Nested classes/interfaces inherited from interface java.util.PrimitiveIterator
  PrimitiveIterator.OfDouble, PrimitiveIterator.OfInt, PrimitiveIterator.OfLong

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static EdgeIter`	`emptyIterator()`	Get an empty edge iterator.
`int`	`peekNext()`	Peek at the next edge of the iterator without advancing it.
`int`	`source()`	Get the source vertex of the last returned edge.
`int`	`target()`	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
  - peekNext
```
int peekNext()
```
    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
  - source
```
int source()
```
    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
  - target
```
int target()
```
    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
  - emptyIterator
```
static EdgeIter emptyIterator()
```
    Get an empty edge iterator.
    
    Returns:
    
    an empty edge iterator