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.spark.sql.execution.datasources.parquet;
  
  import org.apache.spark.sql.execution.vectorized.ColumnVector;
  
  import org.apache.parquet.io.api.Binary;
  
  /**
   * Interface for value decoding that supports vectorized (aka batched) decoding.
   * TODO: merge this into parquet-mr.
   */
  public interface VectorizedValuesReader {
    boolean readBoolean();
    byte readByte();
    int readInteger();
    long readLong();
    float readFloat();
    double readDouble();
    Binary readBinary(int len);
  
    /*
     * Reads `total` values into `c` start at `c[rowId]`
     */
    void readBooleans(int total, ColumnVector c, int rowId);
    void readBytes(int total, ColumnVector c, int rowId);
    void readIntegers(int total, ColumnVector c, int rowId);
    void readLongs(int total, ColumnVector c, int rowId);
    void readFloats(int total, ColumnVector c, int rowId);
    void readDoubles(int total, ColumnVector c, int rowId);
    void readBinary(int total, ColumnVector c, int rowId);
  }
  