cassandra-trunk/src/java/org/apache/cassandra/gms/IFailureDetectionEventListener.java
/*
 * 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.cassandra.gms;

import org.apache.cassandra.locator.InetAddressAndPort;

/**
 * Implemented by the Gossiper to convict an endpoint
 * based on the PHI calculated by the Failure Detector on the inter-arrival
 * times of the heart beats.
 */

public interface IFailureDetectionEventListener
{
    /**
     * Convict the specified endpoint.
     *
     * @param ep  endpoint to be convicted
     * @param phi the value of phi with with ep was convicted
     */
    public void convict(InetAddressAndPort ep, double phi);
}
