/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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);
}