/*
 * 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.gandiva.evaluator;

import org.apache.arrow.gandiva.ipc.GandivaTypes.SelectionVectorType;
import org.apache.arrow.memory.ArrowBuf;

/**
 * Selection vector with records of arrow type INT16.
 */
public class SelectionVectorInt16 extends SelectionVector {

  public SelectionVectorInt16(ArrowBuf buffer) {
    super(buffer);
  }

  @Override
  public int getRecordSize() {
    return 2;
  }

  @Override
  public SelectionVectorType getType() {
    return SelectionVectorType.SV_INT16;
  }

  @Override
  public int getIndex(int index) {
    checkReadBounds(index);

    char value = getBuffer().getChar(index * getRecordSize());
    return (int) value;
  }
}
