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.arrow.flatbuf;
  
  /**
   * Represents Arrow Features that might not have full support
   * within implementations. This is intended to be used in
   * two scenarios:
   *  1.  A mechanism for readers of Arrow Streams
   *      and files to understand that the stream or file makes
   *      use of a feature that isn't supported or unknown to
   *      the implementation (and therefore can meet the Arrow
   *      forward compatibility guarantees).
   *  2.  A means of negotiating between a client and server
   *      what features a stream is allowed to use. The enums
   *      values here are intented to represent higher level
   *      features, additional details maybe negotiated
   *      with key-value pairs specific to the protocol.
   *
   * Enums added to this list should be assigned power-of-two values
   * to facilitate exchanging and comparing bitmaps for supported
   * features.
   */
  @SuppressWarnings("unused")
  public final class Feature {
    private Feature() { }
    /**
     * Needed to make flatbuffers happy.
     */
    public static final long UNUSED = 0L;
    /**
     * The stream makes use of multiple full dictionaries with the
     * same ID and assumes clients implement dictionary replacement
     * correctly.
     */
    public static final long DICTIONARY_REPLACEMENT = 1L;
    /**
     * The stream makes use of compressed bodies as described
     * in Message.fbs.
     */
    public static final long COMPRESSED_BODY = 2L;
  }
  