Package org.apache.pinot.segment.local.io.util

Class PinotDataBitSet

java.lang.Object

org.apache.pinot.segment.local.io.util.PinotDataBitSet

All Implemented Interfaces:

Closeable, AutoCloseable

public final class PinotDataBitSet
extends Object
implements Closeable

Constructor Summary

Constructors

Constructor	Description
PinotDataBitSet(PinotDataBuffer dataBuffer)

Method Summary

Modifier and Type	Method	Description
void	close()
int	getNextNthSetBitOffset(int bitOffset, int n)
int	getNextNthSetBitOffsetAndRecordRanges(int bitOffset, int n, long baseOffset, List<ForwardIndexReader.ByteRange> ranges)
int	getNextSetBitOffset(int bitOffset)
int	getNextSetBitOffsetRecordRanges(int bitOffset, long baseOffset, List<ForwardIndexReader.ByteRange> ranges)
static int	getNumBitsPerValue(int maxValue)	Returns the number of bits required to encode the value.
int	readInt(int index, int numBitsPerValue)
void	readInt(int startIndex, int numBitsPerValue, int length, int[] buffer)
void	setBit(int bitOffset)
void	unsetBit(int bitOffset)
void	writeInt(int index, int numBitsPerValue, int value)
void	writeInt(int startIndex, int numBitsPerValue, int length, int[] values)

Methods inherited from class java.lang.Object

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

Constructor Detail

PinotDataBitSet

public PinotDataBitSet(PinotDataBuffer dataBuffer)

Method Detail

getNumBitsPerValue

public static int getNumBitsPerValue(int maxValue)

Returns the number of bits required to encode the value.

NOTE: Use at least one bit even there is only one possible value

Examples: (maximum value (binary format) -> number of bits)

• 0(0) -> 1
• 1(1) -> 1
• 2(10) -> 2
• 9(1001) -> 4
• 113(1110001) -> 7

Parameters:

maxValue - Maximum possible value

Returns:

Number of bits required to encode the value

readInt

public int readInt(int index,
                   int numBitsPerValue)

readInt

public void readInt(int startIndex,
                    int numBitsPerValue,
                    int length,
                    int[] buffer)

writeInt

public void writeInt(int index,
                     int numBitsPerValue,
                     int value)

writeInt

public void writeInt(int startIndex,
                     int numBitsPerValue,
                     int length,
                     int[] values)

setBit

public void setBit(int bitOffset)

unsetBit

public void unsetBit(int bitOffset)

getNextSetBitOffsetRecordRanges

public int getNextSetBitOffsetRecordRanges(int bitOffset,
                                           long baseOffset,
                                           List<ForwardIndexReader.ByteRange> ranges)

getNextSetBitOffset

public int getNextSetBitOffset(int bitOffset)

getNextNthSetBitOffsetAndRecordRanges

public int getNextNthSetBitOffsetAndRecordRanges(int bitOffset,
                                                 int n,
                                                 long baseOffset,
                                                 List<ForwardIndexReader.ByteRange> ranges)

getNextNthSetBitOffset

public int getNextNthSetBitOffset(int bitOffset,
                                  int n)

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable