Module org.jgrapht.core

Package org.jgrapht.event

Interface GraphListener<V,E>

Type Parameters:

V - the graph vertex type

E - the graph edge type

All Superinterfaces:

EventListener, VertexSetListener<V>

All Known Implementing Classes:

AsSubgraph.BaseGraphListener, ConnectivityInspector, NeighborCache

public interface GraphListener<V,E>
extends VertexSetListener<V>

A listener that is notified when the graph changes.

If only notifications on vertex set changes are required it is more efficient to use the VertexSetListener.

See Also:

• VertexSetListener

Method Summary

Modifier and Type	Method	Description
void	edgeAdded(GraphEdgeChangeEvent<V,E> e)	Notifies that an edge has been added to the graph.
void	edgeRemoved(GraphEdgeChangeEvent<V,E> e)	Notifies that an edge has been removed from the graph.
default void	edgeWeightUpdated(GraphEdgeChangeEvent<V,E> e)	Notifies that an edge weight has been updated.

Methods inherited from interface org.jgrapht.event.VertexSetListener

vertexAdded, vertexRemoved

Method Details

edgeAdded

void edgeAdded(GraphEdgeChangeEvent<V,E> e)

Notifies that an edge has been added to the graph.

Parameters:

e - the edge event.

edgeRemoved

void edgeRemoved(GraphEdgeChangeEvent<V,E> e)

Notifies that an edge has been removed from the graph.

Parameters:

e - the edge event.

edgeWeightUpdated

default void edgeWeightUpdated(GraphEdgeChangeEvent<V,E> e)

Notifies that an edge weight has been updated.

Parameters:

e - the edge event.