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.dht;
  
  abstract class ComparableObjectToken<C extends Comparable<C>> extends Token
  {
      private static final long serialVersionUID = 1L;
  
      final C token;   // Package-private to allow access from subtypes, which should all reside in the dht package.
  
      protected ComparableObjectToken(C token)
      {
          this.token = token;
      }
  
      @Override
      public C getTokenValue()
      {
          return token;
      }
  
      @Override
      public String toString()
      {
          return token.toString();
      }
  
      @Override
      public boolean equals(Object obj)
      {
          if (this == obj)
              return true;
          if (obj == null || this.getClass() != obj.getClass())
              return false;
  
          return token.equals(((ComparableObjectToken<?>)obj).token);
      }
  
      @Override
      public int hashCode()
      {
          return token.hashCode();
      }
  
      @Override
      @SuppressWarnings("unchecked")
      public int compareTo(Token o)
      {
          if (o.getClass() != getClass())
              throw new IllegalArgumentException(String.format("Invalid type of Token.compareTo() argument. %s != %s", o.getClass(), getClass()));
  
          return token.compareTo(((ComparableObjectToken<C>) o).token);
      }
  
      @Override
      public double size(Token next)
      {
          throw new UnsupportedOperationException(String.format("Token type %s does not support token allocation.",
                                                                getClass().getSimpleName()));
      }
  
      @Override
      public Token nextValidToken()
      {
          throw new UnsupportedOperationException(String.format("Token type %s does not support token allocation.",
                                                                getClass().getSimpleName()));
      }
  
      @Override
      public Token decreaseSlightly()
      {
          throw new UnsupportedOperationException(String.format("Token type %s does not support token allocation.",
                                                                getClass().getSimpleName()));
      }
  }
  