nodelist.java

有关java的一个简单树

package com.util;

import java.util.*;

public class NodeList {
  HashMap m_items;

  public NodeList() {
    m_items = new HashMap();
  }

  public void addNode(String id, Node node){
    m_items.put(id, node);
  }

  public int getCount(){
    return m_items.size();
  }

  public Iterator getElements(){
    return m_items.values().iterator();
  }

  public void clear(){
    m_items.clear();
  }

  public Node getNode(String id){
    return (Node)m_items.get(id);
  }
}