package undirectedgraph;

public class Edge {
	private Vertex one, two;
	private double weight;

	public Edge(Vertex one, Vertex two, double weight) {
		this.one = (one.getLabel().compareTo(two.getLabel()) <= 0) ? one : two;
		this.two = (this.one == one) ? two : one;
		this.weight = weight;
	}
	
	public Vertex getNeighbor(Vertex current) {
		if (!(current.equals(one) || current.equals(two))) return null;
		return (current.equals(one)) ? two : one;
	}
	
	public Vertex getOne() {
		return this.one;
	}
	
	public Vertex getTwo() {
		return this.two;
	}
	
	public double getWeight() {
		return this.weight;
	}

	public void setWeight(double weight) {
		this.weight = weight;
	}
	
	public String toString() {
		return one + " <-(" + weight + ")-> " + two;
	}
	
	public int hashcode() {
		return (one.getLabel()+two.getLabel()).hashCode();
	}
}