I have a graph class with Node's, where each Node can connect to others:
public class Node {
List<Node> connections;
}
I would like to make a deep copy of the entire graph. As a first attempt, I tried making a copy constructor like:
public Node(Node other) {
connections = new ArrayList<Node>();
for (Node n : other.connections) {
connections.add(new Node(n));
}
}
So deep copying a graph would just be:
public Graph deepCopy () {
Graph g = new Graph();
g.nodes = new ArrayList<Node>();
for (Node n : nodes) {
g.nodes.add(new Node(n));
}
}
But that doesn't work as that destroys the connection relationship among the nodes. I am wondering if anyone has suggestions to do this in a simple way? Thanks.
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