Package org.apache.hadoop.hbase.io.hfile.bucket

Class BucketAllocator.Bucket

java.lang.Object

org.apache.hadoop.hbase.io.hfile.bucket.BucketAllocator.Bucket

Enclosing class:

BucketAllocator

public static final class BucketAllocator.Bucket
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private long	baseOffset
private int	freeCount
private int[]	freeList
private int	itemAllocationSize
private int	itemCount
private int	sizeIndex
private int	usedCount

Constructor Summary

Constructors

Constructor	Description
Bucket(long offset)

Method Summary

Modifier and Type	Method	Description
void	addAllocation(long offset)
long	allocate()	Allocate a block in this bucket, return the offset representing the position in physical space
private void	free(long offset)
int	freeCount()
private boolean	freeListContains(int blockNo)
long	getBaseOffset()
int	getFreeBytes()
int	getItemAllocationSize()
int	getUsedBytes()
boolean	hasFreeSpace()
boolean	isCompletelyFree()
boolean	isUninstantiated()
(package private) void	reconfigure(int sizeIndex, int[] bucketSizes, long bucketCapacity)
int	sizeIndex()
int	usedCount()

Methods inherited from class java.lang.Object

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

Field Details

baseOffset

private long baseOffset

itemAllocationSize

private int itemAllocationSize

sizeIndex

private int sizeIndex

itemCount

private int itemCount

freeList

private int[] freeList

freeCount

private int freeCount

usedCount

private int usedCount

Constructor Details

Bucket

public Bucket(long offset)

Method Details

reconfigure

void reconfigure(int sizeIndex,
 int[] bucketSizes,
 long bucketCapacity)

isUninstantiated

public boolean isUninstantiated()

sizeIndex

public int sizeIndex()

getItemAllocationSize

public int getItemAllocationSize()

hasFreeSpace

public boolean hasFreeSpace()

isCompletelyFree

public boolean isCompletelyFree()

freeCount

public int freeCount()

usedCount

public int usedCount()

getFreeBytes

public int getFreeBytes()

getUsedBytes

public int getUsedBytes()

getBaseOffset

public long getBaseOffset()

allocate

public long allocate()

Allocate a block in this bucket, return the offset representing the position in physical space

Returns:

the offset in the IOEngine

addAllocation

public void addAllocation(long offset)
                   throws BucketAllocatorException

Throws:

BucketAllocatorException

free

private void free(long offset)

freeListContains

private boolean freeListContains(int blockNo)