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.extension;
  
  import org.apache.arrow.memory.BufferAllocator;
  import org.apache.arrow.memory.util.hash.ArrowBufHasher;
  import org.apache.arrow.vector.ExtensionTypeVector;
  import org.apache.arrow.vector.FieldVector;
  import org.apache.arrow.vector.ValueIterableVector;
  import org.apache.arrow.vector.types.pojo.Field;
  
  /**
   * Opaque is a wrapper for (usually binary) data from an external (often non-Arrow) system that
   * could not be interpreted.
   */
  public class OpaqueVector extends ExtensionTypeVector<FieldVector>
      implements ValueIterableVector<Object> {
    private final Field field;
  
    public OpaqueVector(Field field, BufferAllocator allocator, FieldVector underlyingVector) {
      super(field, allocator, underlyingVector);
      this.field = field;
    }
  
    @Override
    public Field getField() {
      return field;
    }
  
    @Override
    public Object getObject(int index) {
      return getUnderlyingVector().getObject(index);
    }
  
    @Override
    public int hashCode(int index) {
      return hashCode(index, null);
    }
  
    @Override
    public int hashCode(int index, ArrowBufHasher hasher) {
      return getUnderlyingVector().hashCode(index, hasher);
    }
  }
  