Package io.trino.orc

Class CachingOrcDataSource

java.lang.Object

io.trino.orc.CachingOrcDataSource

All Implemented Interfaces:

OrcDataSource, Closeable, AutoCloseable

public class CachingOrcDataSource
extends Object
implements OrcDataSource

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CachingOrcDataSource.RegionFinder

Constructor Summary

Constructors

Constructor	Description
CachingOrcDataSource(OrcDataSource dataSource, CachingOrcDataSource.RegionFinder regionFinder)

Method Summary

Modifier and Type	Method	Description
void	close()
long	getEstimatedSize()
OrcDataSourceId	getId()
long	getReadBytes()
long	getReadTimeNanos()
long	getRetainedSize()	Gets the memory size of this data source.
io.airlift.slice.Slice	readFully(long position, int length)
<K> Map<K,OrcDataReader>	readFully(Map<K,DiskRange> diskRanges)
io.airlift.slice.Slice	readTail(int length)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingOrcDataSource

public CachingOrcDataSource(OrcDataSource dataSource,
                            CachingOrcDataSource.RegionFinder regionFinder)

Method Detail

getId

public OrcDataSourceId getId()

Specified by:

getId in interface OrcDataSource

getReadBytes

public long getReadBytes()

Specified by:

getReadBytes in interface OrcDataSource

getReadTimeNanos

public long getReadTimeNanos()

Specified by:

getReadTimeNanos in interface OrcDataSource

getEstimatedSize

public long getEstimatedSize()

Specified by:

getEstimatedSize in interface OrcDataSource

getRetainedSize

public long getRetainedSize()

Description copied from interface: OrcDataSource

Gets the memory size of this data source. This only includes memory used for the data source and not memory assigned to a specific OrcDataReader.

Specified by:

getRetainedSize in interface OrcDataSource

readTail

public io.airlift.slice.Slice readTail(int length)

Specified by:

readTail in interface OrcDataSource

readFully

public io.airlift.slice.Slice readFully(long position,
                                        int length)
                                 throws IOException

Specified by:

readFully in interface OrcDataSource

Throws:

IOException

readFully

public <K> Map<K,OrcDataReader> readFully(Map<K,DiskRange> diskRanges)
                                         throws IOException

Specified by:

readFully in interface OrcDataSource

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface OrcDataSource

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object