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## org.jgrapht.event
Interface VertexSetListener<V>

All Superinterfaces:
  java.util.EventListener

All Known Subinterfaces:
  GraphListener<V,E>

All Known Implementing Classes:
  ConnectivityInspector, DirectedNeighborIndex, NeighborIndex

    public interface VertexSetListener<V>

extends java.util.EventListener

A listener that is notified when the graph's vertex set changes. It should be used when only notifications on vertex-set changes are of interest. If all graph notifications are of interest better use `GraphListener`.

Since:
  Jul 18, 2003
Author:
  Barak Naveh
See Also:
  `GraphListener`

Method Summary
`void` | `vertexAdded(GraphVertexChangeEvent<V> e)` Notifies that a vertex has been added to the graph.
`void` | `vertexRemoved(GraphVertexChangeEvent<V> e)` Notifies that a vertex has been removed from the graph.

Method Detail

### vertexAdded

    void vertexAdded(GraphVertexChangeEvent<V> e)

  Notifies that a vertex has been added to the graph.

  Parameters:
    `e` - the vertex event.

### vertexRemoved

    void vertexRemoved(GraphVertexChangeEvent<V> e)

  Notifies that a vertex has been removed from the graph.

  Parameters:
    `e` - the vertex event.

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