org.apache.parquet.column.page

Class DataPageV2

java.lang.Object

org.apache.parquet.column.page.Page

org.apache.parquet.column.page.DataPage

org.apache.parquet.column.page.DataPageV2

public class DataPageV2
extends DataPage

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.parquet.column.page.DataPage

DataPage.Visitor<T>

Constructor Summary

Constructors

Constructor and Description
DataPageV2(int rowCount, int nullCount, int valueCount, BytesInput repetitionLevels, BytesInput definitionLevels, Encoding dataEncoding, BytesInput data, int uncompressedSize, Statistics<?> statistics, boolean isCompressed)

Method Summary

Modifier and Type	Method and Description
<T> T	accept(DataPage.Visitor<T> visitor)
static DataPageV2	compressed(int rowCount, int nullCount, int valueCount, BytesInput repetitionLevels, BytesInput definitionLevels, Encoding dataEncoding, BytesInput data, int uncompressedSize, Statistics<?> statistics)
BytesInput	getData()
Encoding	getDataEncoding()
BytesInput	getDefinitionLevels()
Optional<Integer>	getIndexRowCount()
int	getNullCount()
BytesInput	getRepetitionLevels()
int	getRowCount()
Statistics<?>	getStatistics()
boolean	isCompressed()
String	toString()
static DataPageV2	uncompressed(int rowCount, int nullCount, int valueCount, BytesInput repetitionLevels, BytesInput definitionLevels, Encoding dataEncoding, BytesInput data, Statistics<?> statistics)
static DataPageV2	uncompressed(int rowCount, int nullCount, int valueCount, long firstRowIndex, BytesInput repetitionLevels, BytesInput definitionLevels, Encoding dataEncoding, BytesInput data, Statistics<?> statistics)

Methods inherited from class org.apache.parquet.column.page.DataPage

getFirstRowIndex, getValueCount

Methods inherited from class org.apache.parquet.column.page.Page

getCompressedSize, getCrc, getUncompressedSize, setCrc

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DataPageV2

public DataPageV2(int rowCount,
                  int nullCount,
                  int valueCount,
                  BytesInput repetitionLevels,
                  BytesInput definitionLevels,
                  Encoding dataEncoding,
                  BytesInput data,
                  int uncompressedSize,
                  Statistics<?> statistics,
                  boolean isCompressed)

Method Detail

uncompressed

public static DataPageV2 uncompressed(int rowCount,
                                      int nullCount,
                                      int valueCount,
                                      BytesInput repetitionLevels,
                                      BytesInput definitionLevels,
                                      Encoding dataEncoding,
                                      BytesInput data,
                                      Statistics<?> statistics)

Parameters:

rowCount - count of rows

nullCount - count of nulls

valueCount - count of values

repetitionLevels - RLE encoded repetition levels

definitionLevels - RLE encoded definition levels

dataEncoding - encoding for the data

data - data encoded with dataEncoding

statistics - optional statistics for this page

Returns:

an uncompressed page

uncompressed

public static DataPageV2 uncompressed(int rowCount,
                                      int nullCount,
                                      int valueCount,
                                      long firstRowIndex,
                                      BytesInput repetitionLevels,
                                      BytesInput definitionLevels,
                                      Encoding dataEncoding,
                                      BytesInput data,
                                      Statistics<?> statistics)

Parameters:

rowCount - count of rows

nullCount - count of nulls

valueCount - count of values

firstRowIndex - the index of the first row in this page

repetitionLevels - RLE encoded repetition levels

definitionLevels - RLE encoded definition levels

dataEncoding - encoding for the data

data - data encoded with dataEncoding

statistics - optional statistics for this page

Returns:

an uncompressed page

compressed

public static DataPageV2 compressed(int rowCount,
                                    int nullCount,
                                    int valueCount,
                                    BytesInput repetitionLevels,
                                    BytesInput definitionLevels,
                                    Encoding dataEncoding,
                                    BytesInput data,
                                    int uncompressedSize,
                                    Statistics<?> statistics)

Parameters:

rowCount - count of rows

nullCount - count of nulls

valueCount - count of values

repetitionLevels - RLE encoded repetition levels

definitionLevels - RLE encoded definition levels

dataEncoding - encoding for the data

data - data encoded with dataEncoding and compressed

uncompressedSize - total size uncompressed (rl + dl + data)

statistics - optional statistics for this page

Returns:

a compressed page

getRowCount

public int getRowCount()

getNullCount

public int getNullCount()

getRepetitionLevels

public BytesInput getRepetitionLevels()

getDefinitionLevels

public BytesInput getDefinitionLevels()

getDataEncoding

public Encoding getDataEncoding()

getData

public BytesInput getData()

getStatistics

public Statistics<?> getStatistics()

isCompressed

public boolean isCompressed()

getIndexRowCount

public Optional<Integer> getIndexRowCount()

Specified by:

getIndexRowCount in class DataPage

Returns:

the number of rows in this page if the related data is available (in case of pageV1 the optional column-index contains this value)

accept

public <T> T accept(DataPage.Visitor<T> visitor)

Specified by:

accept in class DataPage

toString

public String toString()

Overrides:

toString in class Object