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/*
 * Copyright (C) 2014 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.facebook.presto.jdbc.internal.guava.graph;

import com.facebook.presto.jdbc.internal.guava.annotations.Beta;
import com.google.errorprone.annotations.CanIgnoreReturnValue;

/**
 * A subinterface of {@link Network} which adds mutation methods. When mutation is not required,
 * users should prefer the {@link Network} interface.
 *
 * @author James Sexton
 * @author Joshua O'Madadhain
 * @param  Node parameter type
 * @param  Edge parameter type
 * @since 20.0
 */
@Beta
public interface MutableNetwork extends Network {

  /**
   * Adds {@code node} if it is not already present.
   *
   * 

Nodes must be unique, just as {@code Map} keys must be. They must also be non-null. * * @return {@code true} if the network was modified as a result of this call */ @CanIgnoreReturnValue boolean addNode(N node); /** * Adds {@code edge} connecting {@code nodeU} to {@code nodeV}. In an undirected network, the edge * will also connect {@code nodeV} to {@code nodeU}. * *

Edges must be unique, just as {@code Map} keys must be. They must also be non-null. * *

If {@code nodeU} and {@code nodeV} are not already present in this graph, this method will * silently {@link #addNode(Object) add} {@code nodeU} and {@code nodeV} to the graph. * *

If {@code edge} already connects {@code nodeU} to {@code nodeV} (in the specified order if * this network {@link #isDirected()}, else in any order), then this method will have no effect. * * @return {@code true} if the network was modified as a result of this call * @throws IllegalArgumentException if {@code edge} already exists and does not connect {@code * nodeU} to {@code nodeV}, or if the introduction of the edge would violate {@link * #allowsParallelEdges()} or {@link #allowsSelfLoops()} */ @CanIgnoreReturnValue boolean addEdge(N nodeU, N nodeV, E edge); /** * Removes {@code node} if it is present; all edges incident to {@code node} will also be removed. * * @return {@code true} if the network was modified as a result of this call */ @CanIgnoreReturnValue boolean removeNode(N node); /** * Removes {@code edge} from this network, if it is present. * * @return {@code true} if the network was modified as a result of this call */ @CanIgnoreReturnValue boolean removeEdge(E edge); }





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