io.fury.format.row.Getters Maven / Gradle / Ivy

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/*
 * Copyright 2023 The Fury Authors
 *
 * Licensed 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 io.fury.format.row;

import io.fury.memory.MemoryBuffer;
import java.math.BigDecimal;
import org.apache.arrow.vector.types.pojo.Field;

/**
 * Getter methods for row format. {@link #isNullAt(int)} must be checked before attempting to
 * retrieve a nullable value.
 */
public interface Getters {

  boolean isNullAt(int ordinal);

  boolean getBoolean(int ordinal);

  byte getByte(int ordinal);

  short getShort(int ordinal);

  int getInt(int ordinal);

  long getLong(int ordinal);

  float getFloat(int ordinal);

  double getDouble(int ordinal);

  BigDecimal getDecimal(int ordinal);

  int getDate(int ordinal);

  long getTimestamp(int ordinal);

  String getString(int ordinal);

  byte[] getBinary(int ordinal);

  MemoryBuffer getBuffer(int ordinal);

  Row getStruct(int ordinal);

  ArrayData getArray(int ordinal);

  MapData getMap(int ordinal);

  default Object get(int ordinal, Field field) {
    return field.getType().accept(new ValueVisitor(this)).apply(ordinal);
  }
}