Callback.java

/**
 * Copyright 2008 - 2015 The Loon Game Engine Authors
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 * 
 * @project loon
 * @author cping
 * @email：javachenpeng@yahoo.com
 * @version 0.5
 */
package loon.utils.reply;

public interface Callback<T> {

	public static abstract class Chain<T> implements Callback<T> {
		private Callback<?> onFailure;

		public Chain(Callback<?> onFailure) {
			this.onFailure = onFailure;
		}

		@Override
		public void onFailure(Throwable cause) {
			onFailure.onFailure(cause);
		}
	}

	void onSuccess(T result);

	void onFailure(Throwable cause);

}