scylla-jmx/src/main/java/org/apache/cassandra/gms/HeartBeatState.java

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/*
* 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.
*/
/*
* Copyright (C) 2015 ScyllaDB
*/
/*
* Moddified by ScyllaDB
*/
package org.apache.cassandra.gms;
/**
* HeartBeat State associated with any given endpoint.
*/
class HeartBeatState {
private int generation;
private int version;
HeartBeatState(int gen) {
this(gen, 0);
}
HeartBeatState(int gen, int ver) {
generation = gen;
version = ver;
}
int getGeneration() {
return generation;
}
void updateHeartBeat() {
}
int getHeartBeatVersion() {
return version;
}
void forceNewerGenerationUnsafe() {
generation += 1;
}
void forceHighestPossibleVersionUnsafe() {
version = Integer.MAX_VALUE;
}
public String toString() {
return String.format("HeartBeat: generation = %d, version = %d",
generation, version);
}
}