Bfs.Iter (JGAlgo - Parent 0.3.0 API)

Type Parameters:

V - the vertices type

E - the edges type

All Superinterfaces:

Iterator<V>

All Known Subinterfaces:

Bfs.IntIter

Enclosing interface:

Bfs
```
public static interface Bfs.Iter<V,E>
extends Iterator<V>
```
A BFS iterator.

Author:

Barak Ugav

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`hasNext()`	Check whether there is more vertices to iterate over.
`E`	`lastEdge()`	Get the edge that led to the last vertex returned by `next()`.
`int`	`layer()`	Get the layer of the last vertex returned by `next()`.
`V`	`next()`	Advance the iterator and return a vertex that was not visited by the iterator yet.

Methods inherited from interface java.util.Iterator
forEachRemaining, remove

- Method Detail
  - hasNext
```
boolean hasNext()
```
    Check whether there is more vertices to iterate over.
    
    Specified by:
    
    hasNext in interface Iterator<V>
  - next
```
V next()
```
    Advance the iterator and return a vertex that was not visited by the iterator yet.
    
    Specified by:
    
    next in interface Iterator<V>
  - lastEdge
```
E lastEdge()
```
    Get the edge that led to the last vertex returned by next().
    The behavior is undefined if next() was not called yet.
    
    Returns:
    
    the edge that led to the last vertex returned by next()
  - layer
```
int layer()
```
    Get the layer of the last vertex returned by next().
    The layer of a vertex is the cardinality distance, the number of edges in the path, from the source(s) to the vertex.
    The behavior is undefined if next() was not called yet.
    
    Returns:
    
    the layer of the last vertex returned by next().