org.apache.hadoop.hbase.util.byterange

Class ByteRangeSet

java.lang.Object

org.apache.hadoop.hbase.util.byterange.ByteRangeSet

Direct Known Subclasses:

ByteRangeHashSet, ByteRangeTreeSet

@InterfaceAudience.Private
public abstract class ByteRangeSet
extends Object

Performance oriented class for de-duping and storing arbitrary byte[]'s arriving in non-sorted order. Appends individual byte[]'s to a single big byte[] to avoid overhead and garbage.

Current implementations are ByteRangeHashSet and ByteRangeTreeSet, but other options might be a trie-oriented ByteRangeTrieSet, etc

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	byteAppender fields
protected int	numBytes
protected int	numInputs
protected int	numUniqueRanges
protected int[]	sortedIndexByInsertionId
protected List<Integer>	sortedIndexByUniqueIndex
protected ArrayList<ByteRange>	sortedRanges
protected Map<ByteRange,Integer>	uniqueIndexByUniqueRange
protected int[]	uniqueRangeIndexByInsertionId
protected ArrayList<ByteRange>	uniqueRanges

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ByteRangeSet() construct

Method Summary

Modifier and Type	Method and Description
void	add(ByteRange bytes) Check if the incoming byte range exists.
abstract void	addToSortedRanges() abstract
ByteRangeSet	compile()
long	getAvgSize()
int	getSortedIndexForInsertionId(int insertionId)
ArrayList<ByteRange>	getSortedRanges() get/set
void	reset()
int	size()
protected int	store(ByteRange bytes)
String	toString() standard methods

Methods inherited from class java.lang.Object

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

Field Detail

byteAppender

protected byte[] byteAppender

fields

numBytes

protected int numBytes

uniqueIndexByUniqueRange

protected Map<ByteRange,Integer> uniqueIndexByUniqueRange

uniqueRanges

protected ArrayList<ByteRange> uniqueRanges

numUniqueRanges

protected int numUniqueRanges

uniqueRangeIndexByInsertionId

protected int[] uniqueRangeIndexByInsertionId

numInputs

protected int numInputs

sortedIndexByUniqueIndex

protected List<Integer> sortedIndexByUniqueIndex

sortedIndexByInsertionId

protected int[] sortedIndexByInsertionId

sortedRanges

protected ArrayList<ByteRange> sortedRanges

Constructor Detail

ByteRangeSet

protected ByteRangeSet()

construct

Method Detail

reset

public void reset()

addToSortedRanges

public abstract void addToSortedRanges()

abstract

add

public void add(ByteRange bytes)

Check if the incoming byte range exists. If not, add it to the backing byteAppender[] and insert it into the tracking Map uniqueIndexByUniqueRange.

store

protected int store(ByteRange bytes)

compile

public ByteRangeSet compile()

getSortedIndexForInsertionId

public int getSortedIndexForInsertionId(int insertionId)

size

public int size()

toString

public String toString()

standard methods

Overrides:

toString in class Object

getSortedRanges

public ArrayList<ByteRange> getSortedRanges()

get/set

getAvgSize

public long getAvgSize()