package future;

public class Client {
	public static void main(String[] args) {
		Client client = new Client();
		//这里会立即返回,因为得到的时FutureData而不是RealData
		Data data = client.request("name");
		System.out.println("请求完毕");
		try {
			Thread.sleep(2000);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		 System.out.println("数据="+data.getResult());
		
	}
	public Data request(final String queryStr) {
		final FutureData future= new FutureData();
		new Thread(){
		public void run() {
			//RealData构建很慢,故在单独线程中进行
			RealData realData = new RealData(queryStr);
			future.setRealData(realData);
			};
		}.start();
		return future;
	}
}