Package org.apache.hadoop.hbase.regionserver.querymatcher

Class ColumnCount

java.lang.Object

org.apache.hadoop.hbase.regionserver.querymatcher.ColumnCount

@Private
class ColumnCount
extends Object

Simple wrapper for a byte buffer and a counter. Does not copy.

NOT thread-safe because it is not used in a multi-threaded context, yet.

Field Summary

Fields

Modifier and Type	Field	Description
private final byte[]	bytes
private int	count
private final int	length
private final int	offset

Constructor Summary

Constructors

Constructor	Description
ColumnCount(byte[] column)	Constructor
ColumnCount(byte[] column, int count)	Constructor
ColumnCount(byte[] column, int offset, int length, int count)	Constuctor

Method Summary

Modifier and Type	Method	Description
int	decrement()	Decrement the current version count
byte[]	getBuffer()	Returns the buffer
int	getLength()	Returns the length
int	getOffset()	Returns the offset
int	increment()	Increment the current version count
void	setCount(int count)	Set the current count to a new count

Methods inherited from class java.lang.Object

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

Field Details

bytes

private final byte[] bytes

offset

private final int offset

length

private final int length

count

private int count

Constructor Details

ColumnCount

public ColumnCount(byte[] column)

Constructor

Parameters:

column - the qualifier to count the versions for

ColumnCount

public ColumnCount(byte[] column,
 int count)

Constructor

Parameters:

column - the qualifier to count the versions for

count - initial count

ColumnCount

public ColumnCount(byte[] column,
 int offset,
 int length,
 int count)

Constuctor

Parameters:

column - the qualifier to count the versions for

offset - in the passed buffer where to start the qualifier from

length - of the qualifier

count - initial count

Method Details

getBuffer

public byte[] getBuffer()

Returns the buffer

getOffset

public int getOffset()

Returns the offset

getLength

public int getLength()

Returns the length

decrement

public int decrement()

Decrement the current version count

Returns:

current count

increment

public int increment()

Increment the current version count

Returns:

current count

setCount

public void setCount(int count)

Set the current count to a new count

Parameters:

count - new count to set