How to use

allowsSelfLoops

method

in

com.google.common.graph.ConfigurableMutableNetwork

@Override
@CanIgnoreReturnValue
public boolean removeEdge(E edge) {
 checkNotNull(edge, "edge");
 N nodeU = edgeToReferenceNode.get(edge);
 if (nodeU == null) {
  return false;
 }
 NetworkConnections<N, E> connectionsU = nodeConnections.get(nodeU);
 N nodeV = connectionsU.adjacentNode(edge);
 NetworkConnections<N, E> connectionsV = nodeConnections.get(nodeV);
 connectionsU.removeOutEdge(edge);
 connectionsV.removeInEdge(edge, allowsSelfLoops() && nodeU.equals(nodeV));
 edgeToReferenceNode.remove(edge);
 return true;
}

if (!allowsSelfLoops()) {
 checkArgument(!isSelfLoop, SELF_LOOPS_NOT_ALLOWED, nodeU);

@Override
@CanIgnoreReturnValue
public boolean removeEdge(E edge) {
 checkNotNull(edge, "edge");
 N nodeU = edgeToReferenceNode.get(edge);
 if (nodeU == null) {
  return false;
 }
 NetworkConnections<N, E> connectionsU = nodeConnections.get(nodeU);
 N nodeV = connectionsU.adjacentNode(edge);
 NetworkConnections<N, E> connectionsV = nodeConnections.get(nodeV);
 connectionsU.removeOutEdge(edge);
 connectionsV.removeInEdge(edge, allowsSelfLoops() && nodeU.equals(nodeV));
 edgeToReferenceNode.remove(edge);
 return true;
}

if (!allowsSelfLoops()) {
 checkArgument(!isSelfLoop, SELF_LOOPS_NOT_ALLOWED, nodeU);

@Override
@CanIgnoreReturnValue
public boolean removeEdge(E edge) {
 checkNotNull(edge, "edge");
 N nodeU = edgeToReferenceNode.get(edge);
 if (nodeU == null) {
  return false;
 }
 NetworkConnections<N, E> connectionsU = nodeConnections.get(nodeU);
 N nodeV = connectionsU.adjacentNode(edge);
 NetworkConnections<N, E> connectionsV = nodeConnections.get(nodeV);
 connectionsU.removeOutEdge(edge);
 connectionsV.removeInEdge(edge, allowsSelfLoops() && nodeU.equals(nodeV));
 edgeToReferenceNode.remove(edge);
 return true;
}

if (!allowsSelfLoops()) {
 checkArgument(!isSelfLoop, SELF_LOOPS_NOT_ALLOWED, nodeU);

@Override
@CanIgnoreReturnValue
public boolean removeEdge(E edge) {
 checkNotNull(edge, "edge");
 N nodeU = edgeToReferenceNode.get(edge);
 if (nodeU == null) {
  return false;
 }
 NetworkConnections<N, E> connectionsU = nodeConnections.get(nodeU);
 N nodeV = connectionsU.adjacentNode(edge);
 NetworkConnections<N, E> connectionsV = nodeConnections.get(nodeV);
 connectionsU.removeOutEdge(edge);
 connectionsV.removeInEdge(edge, allowsSelfLoops() && nodeU.equals(nodeV));
 edgeToReferenceNode.remove(edge);
 return true;
}

@Override
@CanIgnoreReturnValue
public boolean removeEdge(E edge) {
 checkNotNull(edge, "edge");
 N nodeU = edgeToReferenceNode.get(edge);
 if (nodeU == null) {
  return false;
 }
 NetworkConnections<N, E> connectionsU = nodeConnections.get(nodeU);
 N nodeV = connectionsU.adjacentNode(edge);
 NetworkConnections<N, E> connectionsV = nodeConnections.get(nodeV);
 connectionsU.removeOutEdge(edge);
 connectionsV.removeInEdge(edge, allowsSelfLoops() && nodeU.equals(nodeV));
 edgeToReferenceNode.remove(edge);
 return true;
}

if (!allowsSelfLoops()) {
 checkArgument(!isSelfLoop, SELF_LOOPS_NOT_ALLOWED, nodeU);

if (!allowsSelfLoops()) {
 checkArgument(!isSelfLoop, SELF_LOOPS_NOT_ALLOWED, nodeU);