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.kafka.streams.state.internals;
  
  import org.apache.kafka.common.utils.Bytes;
  
  import java.util.Objects;
  
  public final class BufferKey implements Comparable<BufferKey> {
      private final long time;
      private final Bytes key;
  
      BufferKey(final long time, final Bytes key) {
          this.time = time;
          this.key = key;
      }
  
      long time() {
          return time;
      }
  
      Bytes key() {
          return key;
      }
  
      @Override
      public boolean equals(final Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
          final BufferKey bufferKey = (BufferKey) o;
          return time == bufferKey.time &&
              Objects.equals(key, bufferKey.key);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(time, key);
      }
  
      @Override
      public int compareTo(final BufferKey o) {
          // ordering of keys within a time uses hashCode.
          final int timeComparison = Long.compare(time, o.time);
          return timeComparison == 0 ? key.compareTo(o.key) : timeComparison;
      }
  
      @Override
      public String toString() {
          return "BufferKey{" +
              "key=" + key +
              ", time=" + time +
              '}';
      }
  }
  