Java example source code file (TestNetworkBuilder.java)

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immutablenetwork, mutablenetwork, testnetworkbuilder

The TestNetworkBuilder.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.testing;

import com.google.common.graph.ImmutableNetwork;
import com.google.common.graph.MutableNetwork;
import com.google.common.graph.NetworkBuilder;

/**
 * This class is useful for fluently building an immutable graph in tests. Example usage:
 * <pre>
 * // Constructs the following graph: (A)    (B)--->(C)
 * private static final ImmutableNetwork<String, String> GRAPH =
 *     TestNetworkBuilder.<String, String>init(NetworkBuilder.directed())
 *         .addNode("A")
 *         .addNode("B")
 *         .addNode("C")
 *         .addEdge("B->C", "B", "C")
 *         .toImmutableNetwork();
 * </code>


 */
public final class TestNetworkBuilder<N, E> {
  private final MutableNetwork<N, E> graph;

  private TestNetworkBuilder(MutableNetwork<N, E> graph) {
    this.graph = graph;
  }

  public static <N, E> TestNetworkBuilder init(NetworkBuilder builder) {
    return new TestNetworkBuilder<N, E>(builder.build());
  }

  public TestNetworkBuilder<N, E> addNode(N node) {
    graph.addNode(node);
    return this;
  }

  public TestNetworkBuilder<N, E> addEdge(E edge, N nodeA, N nodeB) {
    graph.addEdge(edge, nodeA, nodeB);
    return this;
  }

  public ImmutableNetwork<N, E> toImmutableNetwork() {
    return ImmutableNetwork.copyOf(graph);
  }
}


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Java example source code file (TestNetworkBuilder.java)

Java - Java tags/keywords

The TestNetworkBuilder.java Java example source code

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