com.facebook.presto.parquet.reader

Class PageReader

java.lang.Object

com.facebook.presto.parquet.reader.PageReader

public class PageReader
extends Object

Constructor Summary

Constructors

Constructor and Description

PageReader(org.apache.parquet.hadoop.metadata.CompressionCodecName codec, Iterator<DataPage> dataPageIterator, long valueCountInColumnChunk, DictionaryPage compressedDictionaryPage, org.apache.parquet.internal.column.columnindex.OffsetIndex offsetIndex, Optional<org.apache.parquet.format.BlockCipher.Decryptor> blockDecryptor, byte[] fileAdditionalAuthenticationData, int rowGroupOrdinal, int columnOrdinal)

Method Summary

Modifier and Type	Method and Description
static long	getFirstRowIndex(int pageIndex, org.apache.parquet.internal.column.columnindex.OffsetIndex offsetIndex)
long	getRetainedSizeInBytes()
long	getValueCountInColumnChunk()
DictionaryPage	readDictionaryPage()
DataPage	readPage()

Methods inherited from class java.lang.Object

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

Constructor Detail

PageReader

public PageReader(org.apache.parquet.hadoop.metadata.CompressionCodecName codec,
                  Iterator<DataPage> dataPageIterator,
                  long valueCountInColumnChunk,
                  DictionaryPage compressedDictionaryPage,
                  org.apache.parquet.internal.column.columnindex.OffsetIndex offsetIndex,
                  Optional<org.apache.parquet.format.BlockCipher.Decryptor> blockDecryptor,
                  byte[] fileAdditionalAuthenticationData,
                  int rowGroupOrdinal,
                  int columnOrdinal)

Method Detail

getFirstRowIndex

public static long getFirstRowIndex(int pageIndex,
                                    org.apache.parquet.internal.column.columnindex.OffsetIndex offsetIndex)

getValueCountInColumnChunk

public long getValueCountInColumnChunk()

readPage

public DataPage readPage()

readDictionaryPage

public DictionaryPage readDictionaryPage()

getRetainedSizeInBytes

public long getRetainedSizeInBytes()