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.vector.complex.reader;
  
  import org.apache.arrow.vector.holders.ExtensionHolder;
  
  /** Interface for reading extension types. Extends the functionality of {@link BaseReader}. */
  public interface ExtensionReader extends BaseReader {
  
    /**
     * Reads to the given extension holder.
     *
     * @param holder the {@link ExtensionHolder} to read
     */
    void read(ExtensionHolder holder);
  
    /**
     * Reads and returns an object representation of the extension type.
     *
     * @return the object representation of the extension type
     */
    Object readObject();
  
    /**
     * Checks if the current value is set.
     *
     * @return true if the value is set, false otherwise
     */
    boolean isSet();
  }
  