Module datarush.commons

Package com.pervasive.datarush.monitoring

Class IntervalTimer

java.lang.Object

com.pervasive.datarush.monitoring.AbstractIntervalTimerSupplier

com.pervasive.datarush.monitoring.IntervalTimer

All Implemented Interfaces:

IntervalTimerSupplier, StatisticSupplier

public final class IntervalTimer
extends AbstractIntervalTimerSupplier

Basic mutable implementation of AccumulatedTimerSupplier.

Constructor Summary

Constructors

Constructor	Description
IntervalTimer()	Creates a new timer in the StatisticState.UNAVAILABLE state.

Method Summary

Modifier and Type	Method	Description
long	getEndTimeMillis()	Returns the end time if finished, the current time if running, or an undefined value if never started.
long	getStartTimeMillis()	This will return the start time or an undefined value if never started.
StatisticState	getState()	Returns the current state of the supplier.
IntervalTimerSnapshot	snapshot()	Creates a snapshot of this timer.
void	start()	Starts the timer; time will begin to accumulate
void	stop()	Stops the timer.

Methods inherited from class com.pervasive.datarush.monitoring.AbstractIntervalTimerSupplier

getTimeIntervalMillis

Methods inherited from class java.lang.Object

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

Constructor Details

IntervalTimer

public IntervalTimer()

Creates a new timer in the StatisticState.UNAVAILABLE state.

Method Details

getState

public StatisticState getState()

Description copied from interface: StatisticSupplier

Returns the current state of the supplier.

Returns:

the state of the supplier

start

public void start()

Starts the timer; time will begin to accumulate

Throws:

IllegalStateException - if the timer is already started or has finished

stop

public void stop()

Stops the timer. This method can be called while in any state and thus is safe to call within a finally block.

snapshot

public IntervalTimerSnapshot snapshot()

Description copied from interface: IntervalTimerSupplier

Creates a snapshot of this timer. If the timer is in the StatisticState.ACTIVE

Returns:

a snapshot of this statistic.

getStartTimeMillis

public long getStartTimeMillis()

Description copied from interface: IntervalTimerSupplier

This will return the start time or an undefined value if never started.

Returns:

the start time or an undefined value if never started.

getEndTimeMillis

public long getEndTimeMillis()

Description copied from interface: IntervalTimerSupplier

Returns the end time if finished, the current time if running, or an undefined value if never started. If this timer corresponds to a snapshot of a timer that is in the StatisticState.ACTIVE state, then this value will reflect the time at which the snapshot was taken.

Returns:

the end time if finished, the current time if running, or an undefined value if never started