org.apache.iceberg.metrics

Class DefaultCounter

java.lang.Object

org.apache.iceberg.metrics.DefaultCounter

All Implemented Interfaces:

Counter

public class DefaultCounter
extends java.lang.Object
implements Counter

A default Counter implementation that uses an AtomicLong to count events.

Field Summary

Fields

Modifier and Type	Field and Description
static Counter	NOOP

Method Summary

Modifier and Type	Method and Description
void	increment() Increment the counter by 1.
void	increment(long amount) Increment the counter by the provided amount.
java.lang.String	toString()
MetricsContext.Unit	unit() The unit of the counter.
long	value() Reports the current count.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.iceberg.metrics.Counter

increment, isNoop

Field Detail

NOOP

public static final Counter NOOP

Method Detail

increment

public void increment()

Description copied from interface: Counter

Increment the counter by 1.

Specified by:

increment in interface Counter

increment

public void increment(long amount)

Description copied from interface: Counter

Increment the counter by the provided amount.

Implementations may skip the overflow check for better write throughput.

Specified by:

increment in interface Counter

Parameters:

amount - to be incremented.

value

public long value()

Description copied from interface: Counter

Reports the current count.

Specified by:

value in interface Counter

Returns:

The current count.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

unit

public MetricsContext.Unit unit()

Description copied from interface: Counter

The unit of the counter.

Specified by:

unit in interface Counter

Returns:

The unit of the counter.