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Java example source code file (NodeAdjacencies.java)

This example Java source code file (NodeAdjacencies.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

nodeadjacencies, set, util

The NodeAdjacencies.java Java example source code

/*
 * Copyright (C) 2016 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.graph;

import java.util.Set;
/**
 * An interface for representing an origin node's adjacent nodes in a graph.
 *
 * @author James Sexton
 * @param <N> Node parameter type
 */
interface NodeAdjacencies<N> {

  Set<N> adjacentNodes();

  Set<N> predecessors();

  Set<N> successors();

  /**
   * Remove {@code node} from the set of predecessors.
   */
  void removePredecessor(Object node);

  /**
   * Remove {@code node} from the set of successors.
   */
  void removeSuccessor(Object node);

  /**
   * Add {@code node} as a predecessor to the origin node.
   * In the case of an undirected graph, it also becomes a successor.
   */
  void addPredecessor(N node);

  /**
   * Add {@code node} as a successor to the origin node.
   * In the case of an undirected graph, it also becomes a predecessor.
   */
  void addSuccessor(N node);
}

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