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/*
 * Copyright (c) 2002 - 2006 IBM Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 */
package com.ibm.wala.util.graph;

/**
 * Basic interface for a directed graph.
 *
 * We choose to define a {@link Graph} as a composition of a {@link NodeManager} and an {@link
 * EdgeManager}, which track nodes and edges, respectively. This way, in many cases we can compose
 * separate {@link NodeManager} and {@link EdgeManager} implementations to create {@link Graph}
 * implementations, using delegation.
 *
 * @param  the type of nodes in this graph.
 */
public interface Graph extends NodeManager, EdgeManager {
  /**
   * remove a node and all its incident edges
   *
   * @throws UnsupportedOperationException if the graph implementation does not allow removal
   */
  void removeNodeAndEdges(T n) throws UnsupportedOperationException;
}