com.facebook.presto.parquet

Interface ColumnReader

All Known Implementing Classes:

AbstractColumnReader, AbstractNestedBatchReader, BinaryColumnReader, BinaryFlatBatchReader, BinaryNestedBatchReader, BooleanColumnReader, BooleanFlatBatchReader, BooleanNestedBatchReader, DoubleColumnReader, FloatColumnReader, Int32FlatBatchReader, Int32NestedBatchReader, Int64FlatBatchReader, Int64NestedBatchReader, Int64TimestampMicrosFlatBatchReader, Int64TimestampMicrosNestedBatchReader, IntColumnReader, LongColumnReader, LongDecimalColumnReader, LongTimestampMicrosColumnReader, ShortDecimalColumnReader, TimestampColumnReader, TimestampFlatBatchReader, TimestampNestedBatchReader

public interface ColumnReader

Method Summary

Modifier and Type	Method and Description
void	init(PageReader pageReader, Field field, org.apache.parquet.internal.filter2.columnindex.RowRanges rowRanges)
boolean	isInitialized()
void	prepareNextRead(int batchSize)
ColumnChunk	readNext()

Method Detail

isInitialized

boolean isInitialized()

init

void init(PageReader pageReader,
          Field field,
          org.apache.parquet.internal.filter2.columnindex.RowRanges rowRanges)

prepareNextRead

void prepareNextRead(int batchSize)

readNext

ColumnChunk readNext()