/*
* Copyright 2011 Google Inc.
*
* 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.
*/
package com.google.gwt.core.client;
/**
* A callback for any asynchronous call that can result in success or failure.
*
* @param <T> The type returned on success
* @param <F> The type returned on failure
*/
public interface Callback<T, F> {
/**
* Called when an asynchronous call fails to complete normally.
*
* @param reason failure encountered
*/
void onFailure(F reason);
/**
* Called when an asynchronous call completes successfully.
*
* @param result the value returned
*/
void onSuccess(T result);
}