Package org.apache.parquet.column.page

Class DataPageV1

java.lang.Object

org.apache.parquet.column.page.Page

org.apache.parquet.column.page.DataPage

org.apache.parquet.column.page.DataPageV1

public class DataPageV1
extends DataPage

Nested Class Summary

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

DataPage.Visitor<T>

Constructor Summary

Constructors

Constructor	Description
DataPageV1(org.apache.parquet.bytes.BytesInput bytes, int valueCount, int uncompressedSize, long firstRowIndex, int rowCount, Statistics<?> statistics, Encoding rlEncoding, Encoding dlEncoding, Encoding valuesEncoding)
DataPageV1(org.apache.parquet.bytes.BytesInput bytes, int valueCount, int uncompressedSize, Statistics<?> statistics, Encoding rlEncoding, Encoding dlEncoding, Encoding valuesEncoding)

Method Summary

Modifier and Type	Method	Description
<T> T	accept(DataPage.Visitor<T> visitor)
org.apache.parquet.bytes.BytesInput	getBytes()
Encoding	getDlEncoding()
Optional<Integer>	getIndexRowCount()
Encoding	getRlEncoding()
Statistics<?>	getStatistics()
Encoding	getValueEncoding()
String	toString()

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

DataPageV1

public DataPageV1(org.apache.parquet.bytes.BytesInput bytes,
                  int valueCount,
                  int uncompressedSize,
                  Statistics<?> statistics,
                  Encoding rlEncoding,
                  Encoding dlEncoding,
                  Encoding valuesEncoding)

Parameters:

bytes - the bytes for this page

valueCount - count of values in this page

uncompressedSize - the uncompressed size of the page

statistics - of the page's values (max, min, num_null)

rlEncoding - the repetition level encoding for this page

dlEncoding - the definition level encoding for this page

valuesEncoding - the values encoding for this page

DataPageV1

public DataPageV1(org.apache.parquet.bytes.BytesInput bytes,
                  int valueCount,
                  int uncompressedSize,
                  long firstRowIndex,
                  int rowCount,
                  Statistics<?> statistics,
                  Encoding rlEncoding,
                  Encoding dlEncoding,
                  Encoding valuesEncoding)

Parameters:

bytes - the bytes for this page

valueCount - count of values in this page

uncompressedSize - the uncompressed size of the page

firstRowIndex - the index of the first row in this page

rowCount - the number of rows in this page

statistics - of the page's values (max, min, num_null)

rlEncoding - the repetition level encoding for this page

dlEncoding - the definition level encoding for this page

valuesEncoding - the values encoding for this page

Method Detail

getBytes

public org.apache.parquet.bytes.BytesInput getBytes()

Returns:

the bytes for the page

getStatistics

public Statistics<?> getStatistics()

Returns:

the statistics for this page (max, min, num_nulls)

getDlEncoding

public Encoding getDlEncoding()

Returns:

the definition level encoding for this page

getRlEncoding

public Encoding getRlEncoding()

Returns:

the repetition level encoding for this page

getValueEncoding

public Encoding getValueEncoding()

Returns:

the values encoding for this page

toString

public String toString()

Overrides:

toString in class Object

accept

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

Specified by:

accept in class DataPage

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)