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.driver.jdbc.accessor.impl.complex;
  
  import java.util.function.IntSupplier;
  import org.apache.arrow.driver.jdbc.accessor.ArrowFlightJdbcAccessor;
  import org.apache.arrow.driver.jdbc.accessor.ArrowFlightJdbcAccessorFactory;
  import org.apache.arrow.vector.ValueVector;
  import org.apache.arrow.vector.complex.DenseUnionVector;
  
  /** Accessor for the Arrow type {@link DenseUnionVector}. */
  public class ArrowFlightJdbcDenseUnionVectorAccessor
      extends AbstractArrowFlightJdbcUnionVectorAccessor {
  
    private final DenseUnionVector vector;
  
    /**
     * Instantiate an accessor for a {@link DenseUnionVector}.
     *
     * @param vector an instance of a DenseUnionVector.
     * @param currentRowSupplier the supplier to track the rows.
     * @param setCursorWasNull the consumer to set if value was null.
     */
    public ArrowFlightJdbcDenseUnionVectorAccessor(
        DenseUnionVector vector,
        IntSupplier currentRowSupplier,
        ArrowFlightJdbcAccessorFactory.WasNullConsumer setCursorWasNull) {
      super(currentRowSupplier, setCursorWasNull);
      this.vector = vector;
    }
  
    @Override
    protected ArrowFlightJdbcAccessor createAccessorForVector(ValueVector vector) {
      return ArrowFlightJdbcAccessorFactory.createAccessor(
          vector, () -> this.vector.getOffset(this.getCurrentRow()), (boolean wasNull) -> {});
    }
  
    @Override
    protected byte getCurrentTypeId() {
      int index = getCurrentRow();
      return this.vector.getTypeId(index);
    }
  
    @Override
    protected ValueVector getVectorByTypeId(byte typeId) {
      return this.vector.getVectorByType(typeId);
    }
  }
  