Package com.jgalgo.graph

Interface EdgeIter<V,​E>

  • Type Parameters:
    V - the vertices type
    E - the edges type
    All Superinterfaces:
    Iterator<E>
    All Known Subinterfaces:
    IEdgeIter
    public interface EdgeIter<V,​E>
extends Iterator<E>
    Iterator used to iterate over graph edges.

    Each value returned by Iterator.next() is an edge iterated by the iterator. The source and target of the last iterated edge are available by source() and target(). 

     
 Graph<String, Integer> g = ...;
 String vertex = ...;
 for (EdgeIter<String, Integer> eit = g.outEdges(vertex).iterator(); eit.hasNext();) {
 	Integer e = eit.next();
 	String u = eit.source();
 	String v = eit.target();
 	assert vertex.equals(u);
 	System.out.println("Out edge of " + vertex + ": " + e + "(" + u + ", " + v + ")");
 }
    Author:
    Barak Ugav
    See Also:
    EdgeSet

    • Method Detail

      • peekNext

        E peekNext()
        Peek at the next edge of the iterator without advancing it.

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

        Returns:
        the next edge of the iterator
        Throws:
        NoSuchElementException - if there is no 'next' element

      • source

        V source()
        Get the source vertex of the last returned edge.

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

        Returns:
        the source vertex of the last returned edge

      • target

        V target()
        Get the target vertex of the last returned edge.

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

        Returns:
        the target vertex of the last returned edge