parquet.column.ColumnWriter Maven / Gradle / Ivy
/**
* 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.column;
import parquet.io.api.Binary;
/**
* writer for (repetition level, definition level, values) triplets
*
* @author Julien Le Dem
*
*/
public interface ColumnWriter {
/**
* writes the current value
* @param value
* @param repetitionLevel
* @param definitionLevel
*/
void write(int value, int repetitionLevel, int definitionLevel);
/**
* writes the current value
* @param value
* @param repetitionLevel
* @param definitionLevel
*/
void write(long value, int repetitionLevel, int definitionLevel);
/**
* writes the current value
* @param value
* @param repetitionLevel
* @param definitionLevel
*/
void write(boolean value, int repetitionLevel, int definitionLevel);
/**
* writes the current value
* @param value
* @param repetitionLevel
* @param definitionLevel
*/
void write(Binary value, int repetitionLevel, int definitionLevel);
/**
* writes the current value
* @param value
* @param repetitionLevel
* @param definitionLevel
*/
void write(float value, int repetitionLevel, int definitionLevel);
/**
* writes the current value
* @param value
* @param repetitionLevel
* @param definitionLevel
*/
void write(double value, int repetitionLevel, int definitionLevel);
/**
* writes the current null value
* @param repetitionLevel
* @param definitionLevel
*/
void writeNull(int repetitionLevel, int definitionLevel);
/**
* Flushes the underlying store. This should be called when there are no
* remaining triplets to be written.
*/
void flush();
/**
* used to decide when to write a page or row group
* @return the number of bytes of memory used to buffer the current data
*/
long getBufferedSizeInMemory();
}