abstractclientfactory.java

Java 3D Desktop Environment旨在使用Java 3D来创建一个3D桌面环境。功能包括：分布式的应用程序

package org.j3de.client;

import java.util.Enumeration;

import org.j3de.interfaces.Application;

public abstract class AbstractClientFactory {

  private static AbstractClientFactory clientFactory;

  public AbstractClientFactory() {
    clientFactory = this;
  }

  public abstract Application getConfiguration();
  public abstract Enumeration getStartupApplications();

  public static AbstractClientFactory getFactory() {
    if (clientFactory == null)
      throw new IllegalStateException("No ClientFactory has been instantiated");

    return clientFactory;
  }

}