parquet.column.page

Interface PageReader

public interface PageReader

Reader for a sequence a page from a given column chunk

Author:

Julien Le Dem

Method Summary

Methods

Modifier and Type	Method and Description
long	getTotalValueCount()
DictionaryPage	readDictionaryPage()
DataPage	readPage()

Method Detail

readDictionaryPage

DictionaryPage readDictionaryPage()

Returns:

the dictionary page in that chunk or null if none

getTotalValueCount

long getTotalValueCount()

Returns:

the total number of values in the column chunk

readPage

DataPage readPage()

Returns:

the next page in that chunk or null if after the last page