/** * Copyright 2010 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 org.waveprotocol.wave.client.doodad.experimental.htmltemplate; /** * A callback from an RPC. * * @param <R> Response type. */ public interface Callback<R> { /** * Notifies this callback of a successful response. */ void onSuccess(R cajoled); /** * Notifies this callback of a failure. This includes application-level * failures (e.g., errors in performing the request) as well as * communication-level failures (timeouts, message errors, etc). */ void onError(String message); }