org.apache.zeppelin.service.ServiceCallback Maven / Gradle / Ivy
/*
* 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.apache.zeppelin.service;
import java.io.IOException;
/**
* This will be used by service classes as callback mechanism.
*/
public interface ServiceCallback {
/**
* Called when this service call is starting
* @param message
* @param context
* @throws IOException
*/
void onStart(String message, ServiceContext context) throws IOException;
/**
* Called when this service call is succeed
* @param result
* @param context
* @throws IOException
*/
void onSuccess(T result, ServiceContext context) throws IOException;
/**
* Called when this service call is failed
* @param ex
* @param context
* @throws IOException
*/
void onFailure(Exception ex, ServiceContext context) throws IOException;
}