// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.plugins.graphview.core.graph;
/**
* observer that will be informed about changes in a WayGraph
* if it has been registered using {@link WayGraph#addObserver(WayGraphObserver)}
*/
public interface WayGraphObserver {
/**
* informs this observer about changes in an observed graph
* @param wayGraph observed graph that has changed; != null
*/
void update(WayGraph wayGraph);
}