Package io.trino.parquet.reader

Class ParquetReader

java.lang.Object

io.trino.parquet.reader.ParquetReader

All Implemented Interfaces:

Closeable, AutoCloseable

public class ParquetReader
extends Object
implements Closeable

Constructor Summary

Constructors

Constructor	Description
ParquetReader(Optional<String> fileCreatedBy, org.apache.parquet.io.MessageColumnIO messageColumnIO, List<org.apache.parquet.hadoop.metadata.BlockMetaData> blocks, Optional<List<Long>> firstRowsOfBlocks, ParquetDataSource dataSource, org.joda.time.DateTimeZone timeZone, AggregatedMemoryContext systemMemoryContext, ParquetReaderOptions options)
ParquetReader(Optional<String> fileCreatedBy, org.apache.parquet.io.MessageColumnIO messageColumnIO, List<org.apache.parquet.hadoop.metadata.BlockMetaData> blocks, Optional<List<Long>> firstRowsOfBlocks, ParquetDataSource dataSource, org.joda.time.DateTimeZone timeZone, AggregatedMemoryContext systemMemoryContext, ParquetReaderOptions options, Predicate parquetPredicate, List<Optional<org.apache.parquet.internal.filter2.columnindex.ColumnIndexStore>> columnIndexStore)

Method Summary

Modifier and Type	Method	Description
void	close()
ParquetDataSource	getDataSource()
AggregatedMemoryContext	getSystemMemoryContext()
long	lastBatchStartRow()	Get the global row index of the first row in the last batch.
int	nextBatch()
Block	readBlock(Field field)

Methods inherited from class java.lang.Object

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

Constructor Detail

ParquetReader

public ParquetReader(Optional<String> fileCreatedBy,
                     org.apache.parquet.io.MessageColumnIO messageColumnIO,
                     List<org.apache.parquet.hadoop.metadata.BlockMetaData> blocks,
                     Optional<List<Long>> firstRowsOfBlocks,
                     ParquetDataSource dataSource,
                     org.joda.time.DateTimeZone timeZone,
                     AggregatedMemoryContext systemMemoryContext,
                     ParquetReaderOptions options)
              throws IOException

Throws:

IOException

ParquetReader

public ParquetReader(Optional<String> fileCreatedBy,
                     org.apache.parquet.io.MessageColumnIO messageColumnIO,
                     List<org.apache.parquet.hadoop.metadata.BlockMetaData> blocks,
                     Optional<List<Long>> firstRowsOfBlocks,
                     ParquetDataSource dataSource,
                     org.joda.time.DateTimeZone timeZone,
                     AggregatedMemoryContext systemMemoryContext,
                     ParquetReaderOptions options,
                     Predicate parquetPredicate,
                     List<Optional<org.apache.parquet.internal.filter2.columnindex.ColumnIndexStore>> columnIndexStore)
              throws IOException

Throws:

IOException

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException

lastBatchStartRow

public long lastBatchStartRow()

Get the global row index of the first row in the last batch.

nextBatch

public int nextBatch()

readBlock

public Block readBlock(Field field)
                throws IOException

Throws:

IOException

getDataSource

public ParquetDataSource getDataSource()

getSystemMemoryContext

public AggregatedMemoryContext getSystemMemoryContext()