singletonb.java

来自「java编程百例」· Java 代码 · 共 20 行

package ch10.section02;

import java.util.*;

public class SingletonB {
  static private Hashtable registry = new Hashtable();

  public static void Register(String name, SingletonB aInstance) {
    registry.put(name, aInstance);
  }

  public static SingletonB GetInstance(String name) {
    return LookUp(name);
  }

  protected static SingletonB LookUp(String name) {
    return (SingletonB) registry.get(name);
  }
}