| /* |
| * 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.db; |
| |
| import com.google.common.base.Objects; |
| |
| import org.apache.cassandra.cache.IMeasurableMemory; |
| import org.apache.cassandra.utils.ObjectSizes; |
| |
| public class ClockAndCount implements IMeasurableMemory |
| { |
| |
| private static final long EMPTY_SIZE = ObjectSizes.measure(new ClockAndCount(0, 0)); |
| |
| public static ClockAndCount BLANK = ClockAndCount.create(0L, 0L); |
| |
| public final long clock; |
| public final long count; |
| |
| private ClockAndCount(long clock, long count) |
| { |
| this.clock = clock; |
| this.count = count; |
| } |
| |
| public static ClockAndCount create(long clock, long count) |
| { |
| return new ClockAndCount(clock, count); |
| } |
| |
| public long unsharedHeapSize() |
| { |
| return EMPTY_SIZE; |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) |
| return true; |
| |
| if (!(o instanceof ClockAndCount)) |
| return false; |
| |
| ClockAndCount other = (ClockAndCount) o; |
| return clock == other.clock && count == other.count; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return Objects.hashCode(clock, count); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return String.format("ClockAndCount(%s,%s)", clock, count); |
| } |
| } |