/*
* 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.catalina.ha.backend;
/**
* Interface to send data to proxies.
*/
public interface Sender {
/**
* Set the configuration parameters
* @param config The heartbeat listener configuration
* @throws Exception An error occurred
*/
public void init(HeartbeatListener config) throws Exception;
/**
* Send the message to the proxies
* @param mess The message that will be sent
* @return <code>0</code> if no error occurred, <code>-1</code> otherwise
* @throws Exception An error occurred
*/
public int send(String mess) throws Exception;
}