VisClient/org/dronus/graph/Node.java

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/*
 * Created on 05.03.2005
 *
 */
package org.dronus.graph;

import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import java.util.Vector;

public class Node  {

        public int id; 
        
        public List<Edge> edges= new LinkedList<Edge>();
        public String type="undefined",text;
        
        public Node(String id, String text, String type) {
                this.id = id.hashCode();
                this.text = text;
                this.type = type;
        }
        
        public Node(int id, String text, String type) {
                this.id = id;
                this.text = text;
                this.type = type;
        }
        
        public Node(String text) {
                this.text=text;
        }
        
        public int edgeCount() {   return edges.size(); }
        public Collection<Edge> getEdges(){return edges;}
        public Collection<Node> getFromNodes(){
                Vector<Node> nodes=new Vector<Node>();
                for(Edge e: edges){
                        Node n=e.getFrom();
                        if (n!=this) nodes.add(n);
                }
                return nodes;
        }
        public Node getSubNode(String type){
                for(Edge e: edges){
                        Node n=e.getFrom();
                        if (n!=this && n.type.equals(type)) 
                                return n;
                }
                return null;
        }
        public String getSubNodeText(String type){
                Node n=getSubNode(type);
                if (n!=null) return n.text;
                else return null;
        }
        //public Edge edgeAt( int index ) {  return (Edge)edges.elementAt(index);  }
        public void addEdge( Edge edge ) {   if ( edge != null )   edges.add(edge);  }
        public void removeEdge(Edge edge ) {   edges.remove(edge); }
        
        public boolean equals(Object other) {   return (other instanceof Node && ((Node)other).id==id); }
        
        public int hashCode() {return id;}
}

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