Module datarush.commons

Package com.pervasive.datarush.monitoring

Class CounterSnapshot

java.lang.Object

com.pervasive.datarush.monitoring.CounterSnapshot

All Implemented Interfaces:

CounterSupplier, StatisticSupplier, Serializable

public final class CounterSnapshot
extends Object
implements CounterSupplier, Serializable

A snapshot that reflects a point-in-time of a CounterSupplier.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final CounterSnapshot	UNAVAILABLE	Constant that corresponds to a snapshot of a counter in the StatisticState.UNAVAILABLE state.

Constructor Summary

Constructors

Constructor	Description
CounterSnapshot(CounterSupplier source)	Create a snapshot of the given counter.
CounterSnapshot(StatisticState state, long count)	Create a snapshot with the specified values

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
long	getCount()	This will return the value of the counter or an undefined value if never started.
StatisticState	getState()	Returns the current state of the supplier.
int	hashCode()
CounterSnapshot	snapshot()	Returns a snapshot of this statistic.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

UNAVAILABLE

public static final CounterSnapshot UNAVAILABLE

Constant that corresponds to a snapshot of a counter in the StatisticState.UNAVAILABLE state.

Constructor Details

CounterSnapshot

public CounterSnapshot(CounterSupplier source)

Create a snapshot of the given counter.

Parameters:

source - the counter

CounterSnapshot

public CounterSnapshot(StatisticState state,
 long count)

Create a snapshot with the specified values

Parameters:

state - the state of the counter

count - the count of the counter

Method Details

snapshot

public CounterSnapshot snapshot()

Description copied from interface: StatisticSupplier

Returns a snapshot of this statistic.

Specified by:

snapshot in interface CounterSupplier

Specified by:

snapshot in interface StatisticSupplier

Returns:

a snapshot of this statistic.

getState

public StatisticState getState()

Description copied from interface: StatisticSupplier

Returns the current state of the supplier.

Specified by:

getState in interface StatisticSupplier

Returns:

the state of the supplier

getCount

public long getCount()

Description copied from interface: CounterSupplier

This will return the value of the counter or an undefined value if never started.

Specified by:

getCount in interface CounterSupplier

Returns:

the value of the counter or an undefined value if never started.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object