content: /*
   * 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);
      }
  }
  