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.cql3.statements;
  
  import org.apache.cassandra.schema.ColumnMetadata;
  
  public enum Bound
  {
      START(0), END(1);
  
      public final int idx;
  
      Bound(int idx)
      {
          this.idx = idx;
      }
  
      /**
       * Reverses the bound if the column type is a reversed one.
       *
       * @param columnMetadata the column definition
       * @return the bound reversed if the column type was a reversed one or the original bound
       */
      public Bound reverseIfNeeded(ColumnMetadata columnMetadata)
      {
          return columnMetadata.isReversedType() ? reverse() : this;
      }
  
      public Bound reverse()
      {
          return isStart() ? END : START;
      }
  
      public boolean isStart()
      {
          return this == START;
      }
  
      public boolean isEnd()
      {
          return this == END;
      }
  }
  