parquet-column/src/main/java/parquet/io/api/PrimitiveConverter.java

/**
 * Copyright 2012 Twitter, Inc.
 *
 * 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 parquet.io.api;

import parquet.column.Dictionary;

/**
 * converter for leaves of the schema
 *
 * @author Julien Le Dem
 *
 */
abstract public class PrimitiveConverter extends Converter {

  @Override
  public boolean isPrimitive() {
    return true;
  }

  @Override
  public PrimitiveConverter asPrimitiveConverter() {
    return this;
  }

  /**
   * if it returns true we will attempt to use dictionary based conversion instead
   * @return if dictionary is supported
   */
  public boolean hasDictionarySupport() {
    return false;
  }

  /**
   * Set the dictionary to use if the data was encoded using dictionary encoding
   * and the converter hasDictionarySupport().
   * @param dictionary the dictionary to use for conversion
   */
  public void setDictionary(Dictionary dictionary) {
    throw new UnsupportedOperationException(getClass().getName());
  }

  /** runtime calls  **/

  /**
   * add a value based on the dictionary set with setDictionary()
   * Will be used if the Converter has dictionary support and the data was encoded using a dictionary
   * @param dictionaryId the id in the dictionary of the value to add
   */
  public void addValueFromDictionary(int dictionaryId) {
    throw new UnsupportedOperationException(getClass().getName());
  }

  /**
   * @param value value to set
   */
  public void addBinary(Binary value) {
    throw new UnsupportedOperationException(getClass().getName());
  }

  /**
   * @param value value to set
   */
  public void addBoolean(boolean value) {
    throw new UnsupportedOperationException(getClass().getName());
  }

  /**
   * @param value value to set
   */
  public void addDouble(double value) {
    throw new UnsupportedOperationException(getClass().getName());
  }

  /**
   * @param value value to set
   */
  public void addFloat(float value) {
    throw new UnsupportedOperationException(getClass().getName());
  }

  /**
   * @param value value to set
   */
  public void addInt(int value) {
    throw new UnsupportedOperationException(getClass().getName());
  }

  /**
   * @param value value to set
   */
  public void addLong(long value) {
    throw new UnsupportedOperationException(getClass().getName());
  }

}