Package org.apache.druid.segment.data

Class DeltaLongEncodingReader

java.lang.Object

org.apache.druid.segment.data.DeltaLongEncodingReader

All Implemented Interfaces:

CompressionFactory.LongEncodingReader

public class DeltaLongEncodingReader
extends Object
implements CompressionFactory.LongEncodingReader

Constructor Summary

Constructors

Constructor	Description
DeltaLongEncodingReader(ByteBuffer fromBuffer)

Method Summary

Modifier and Type	Method	Description
CompressionFactory.LongEncodingReader	duplicate()	Duplicates this reader, creating a new reader that does not share any state.
CompressionFactory.LongEncodingStrategy	getStrategy()
long	read(int index)
int	read(long[] out, int outPosition, int[] indexes, int length, int indexOffset, int limit)
void	read(long[] out, int outPosition, int startIndex, int length)
void	setBuffer(ByteBuffer buffer)

Methods inherited from class java.lang.Object

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

Constructor Details

DeltaLongEncodingReader

public DeltaLongEncodingReader(ByteBuffer fromBuffer)

Method Details

setBuffer

public void setBuffer(ByteBuffer buffer)

Specified by:

setBuffer in interface CompressionFactory.LongEncodingReader

read

public long read(int index)

Specified by:

read in interface CompressionFactory.LongEncodingReader

read

public void read(long[] out,
 int outPosition,
 int startIndex,
 int length)

Specified by:

read in interface CompressionFactory.LongEncodingReader

read

public int read(long[] out,
 int outPosition,
 int[] indexes,
 int length,
 int indexOffset,
 int limit)

Specified by:

read in interface CompressionFactory.LongEncodingReader

duplicate

public CompressionFactory.LongEncodingReader duplicate()

Description copied from interface: CompressionFactory.LongEncodingReader

Duplicates this reader, creating a new reader that does not share any state. Important to achieve thread-safety, because a common pattern is to duplicate a reader multiple times and then call CompressionFactory.LongEncodingReader.setBuffer(java.nio.ByteBuffer) on the various duplicates.

Specified by:

duplicate in interface CompressionFactory.LongEncodingReader

getStrategy

public CompressionFactory.LongEncodingStrategy getStrategy()

Specified by:

getStrategy in interface CompressionFactory.LongEncodingReader