How to use

inDegree

method

in

com.google.common.graph.ValueGraph

@Override
public int outDegree(N node) {
 return delegate().inDegree(node); // transpose
}

@Override
public int inDegree(N node) {
 return delegate().inDegree(node);
}

@Override
public int outDegree(N node) {
 return delegate().inDegree(node); // transpose
}

@Override
public int inDegree(N node) {
 return delegate().inDegree(node);
}

@Override
public int outDegree(N node) {
 return delegate().inDegree(node); // transpose
}

@Override
public int inDegree(N node) {
 return delegate().inDegree(node);
}

@Test
public void transpose_directedValueGraph() {
 MutableValueGraph<Integer, String> directedGraph =
   ValueGraphBuilder.directed().allowsSelfLoops(true).build();
 directedGraph.putEdgeValue(N1, N3, E13);
 directedGraph.putEdgeValue(N3, N1, E31);
 directedGraph.putEdgeValue(N1, N2, E12);
 directedGraph.putEdgeValue(N1, N1, E11);
 directedGraph.putEdgeValue(N3, N4, E34);
 MutableValueGraph<Integer, String> expectedTranspose =
   ValueGraphBuilder.directed().allowsSelfLoops(true).build();
 expectedTranspose.putEdgeValue(N3, N1, E13);
 expectedTranspose.putEdgeValue(N1, N3, E31);
 expectedTranspose.putEdgeValue(N2, N1, E12);
 expectedTranspose.putEdgeValue(N1, N1, E11);
 expectedTranspose.putEdgeValue(N4, N3, E34);
 ValueGraph<Integer, String> transpose = transpose(directedGraph);
 assertThat(transpose).isEqualTo(expectedTranspose);
 assertThat(transpose(transpose)).isSameAs(directedGraph);
 AbstractGraphTest.validateGraph(transpose.asGraph());
 assertThat(transpose.edgeValueOrDefault(N1, N2, null)).isNull();
 for (Integer node : directedGraph.nodes()) {
  assertThat(directedGraph.inDegree(node)).isSameAs(transpose.outDegree(node));
  assertThat(directedGraph.outDegree(node)).isSameAs(transpose.inDegree(node));
 }
 directedGraph.putEdgeValue(N2, N1, E21);
 // View should be updated.
 assertThat(transpose.edgeValueOrDefault(N1, N2, null)).isEqualTo(E21);
 AbstractGraphTest.validateGraph(transpose.asGraph());
}

@Override
public int inDegreeOf(V vertex)
{
  return valueGraph.inDegree(vertex);
}

@Override
public int outDegree(N node) {
 return delegate().inDegree(node); // transpose
}

@Override
public int inDegree(N node) {
 return delegate().inDegree(node);
}

@Override
public int outDegree(N node) {
 return delegate().inDegree(node); // transpose
}

@Override
public int inDegree(N node) {
 return delegate().inDegree(node);
}

@Test
public void transpose_directedValueGraph() {
 MutableValueGraph<Integer, String> directedGraph =
   ValueGraphBuilder.directed().allowsSelfLoops(true).build();
 directedGraph.putEdgeValue(N1, N3, E13);
 directedGraph.putEdgeValue(N3, N1, E31);
 directedGraph.putEdgeValue(N1, N2, E12);
 directedGraph.putEdgeValue(N1, N1, E11);
 directedGraph.putEdgeValue(N3, N4, E34);
 MutableValueGraph<Integer, String> expectedTranspose =
   ValueGraphBuilder.directed().allowsSelfLoops(true).build();
 expectedTranspose.putEdgeValue(N3, N1, E13);
 expectedTranspose.putEdgeValue(N1, N3, E31);
 expectedTranspose.putEdgeValue(N2, N1, E12);
 expectedTranspose.putEdgeValue(N1, N1, E11);
 expectedTranspose.putEdgeValue(N4, N3, E34);
 ValueGraph<Integer, String> transpose = transpose(directedGraph);
 assertThat(transpose).isEqualTo(expectedTranspose);
 assertThat(transpose(transpose)).isSameAs(directedGraph);
 AbstractGraphTest.validateGraph(transpose.asGraph());
 assertThat(transpose.edgeValueOrDefault(N1, N2, null)).isNull();
 for (Integer node : directedGraph.nodes()) {
  assertThat(directedGraph.inDegree(node)).isSameAs(transpose.outDegree(node));
  assertThat(directedGraph.outDegree(node)).isSameAs(transpose.inDegree(node));
 }
 directedGraph.putEdgeValue(N2, N1, E21);
 // View should be updated.
 assertThat(transpose.edgeValueOrDefault(N1, N2, null)).isEqualTo(E21);
 AbstractGraphTest.validateGraph(transpose.asGraph());
}