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 java.util.Objects;
  
  import org.apache.cassandra.db.rows.RangeTombstoneMarker;
  
  /**
   * A range tombstone is a tombstone that covers a slice/range of rows.
   * <p>
   * Note that in most of the storage engine, a range tombstone is actually represented by its separated
   * opening and closing bound, see {@link RangeTombstoneMarker}. So in practice, this is only used when
   * full partitions are materialized in memory in a {@code Partition} object, and more precisely through
   * the use of a {@code RangeTombstoneList} in a {@code DeletionInfo} object.
   */
  public class RangeTombstone
  {
      private final Slice slice;
      private final DeletionTime deletion;
  
      public RangeTombstone(Slice slice, DeletionTime deletion)
      {
          this.slice = slice;
          this.deletion = deletion;
      }
  
      /**
       * The slice of rows that is deleted by this range tombstone.
       *
       * @return the slice of rows that is deleted by this range tombstone.
       */
      public Slice deletedSlice()
      {
          return slice;
      }
  
      /**
       * The deletion time for this (range) tombstone.
       *
       * @return the deletion time for this range tombstone.
       */
      public DeletionTime deletionTime()
      {
          return deletion;
      }
  
      public String toString(ClusteringComparator comparator)
      {
          return slice.toString(comparator) + '@' + deletion;
      }
  
      @Override
      public boolean equals(Object other)
      {
          if(!(other instanceof RangeTombstone))
              return false;
  
          RangeTombstone that = (RangeTombstone)other;
          return this.deletedSlice().equals(that.deletedSlice())
              && this.deletionTime().equals(that.deletionTime());
      }
  
      @Override
      public int hashCode()
      {
          return Objects.hash(deletedSlice(), deletionTime());
      }
  }
  