org.apache.hadoop.hbase.metrics

Interface Counter

All Superinterfaces:

Metric

All Known Implementing Classes:

CounterImpl

@InterfaceAudience.LimitedPrivate(value="Coprocesssor")
 @InterfaceStability.Evolving
public interface Counter
extends Metric

A mutable number optimized for high concurrency counting.

Method Summary

Modifier and Type	Method and Description
void	decrement() Decrement this by 1.
void	decrement(long n) Decrement this by n.
long	getCount() Returns the current value.
void	increment() Increment this by 1.
void	increment(long n) Increment this by n.

Method Detail

increment

void increment()

Increment this by 1.

increment

void increment(long n)

Increment this by n.

Parameters:

n - The amount to increment.

decrement

void decrement()

Decrement this by 1.

decrement

void decrement(long n)

Decrement this by n.

Parameters:

n - The amount to decrement.

getCount

long getCount()

Returns the current value.

Returns:

the current value.