org.wings.util
Class TimeMeasure

java.lang.Object
  org.wings.util.TimeMeasure

public class TimeMeasure
extends Object

Some simple stop watch. It allows to measure multiple time periods and prints them. Usage: call start(comment) and stop() for each period of time.

Author:

Armin Haaf

Field Summary

protected org.wings.util.TimeMeasure.Measure	current the current time measurement.
protected MessageFormat	formatter Message formatter
protected ArrayList	measures List of measurements.
protected static double	RESOLUTION

Constructor Summary

TimeMeasure()
Simple TimeMesaure with default format.

TimeMeasure(MessageFormat formatter)
A new TimeMeasure which reports in a specific format.

Method Summary

String	print()
String	print(boolean shortestIsReference) creates a formatted output (using the MessageFormat) of all results.
void	reset() Reset of all Measurements.
void	start(String comment)
void	stop() stop current time measurement and store it.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

RESOLUTION

protected static final double RESOLUTION

See Also:

Constant Field Values

measures

protected final ArrayList measures

List of measurements.

formatter

protected final MessageFormat formatter

Message formatter

current

protected org.wings.util.TimeMeasure.Measure current

the current time measurement.

Constructor Detail

TimeMeasure

public TimeMeasure()

Simple TimeMesaure with default format.

TimeMeasure

public TimeMeasure(MessageFormat formatter)

A new TimeMeasure which reports in a specific format. The format is a standard MessageFormat with the following variables:

• {0} the measurement comment
• {1} the time it took
• {2} how many times this is faster than the slowest measurement

Method Detail

reset

public void reset()

Reset of all Measurements.

start

public void start(String comment)

stop

public void stop()

stop current time measurement and store it.

print

public String print()

print

public String print(boolean shortestIsReference)

creates a formatted output (using the MessageFormat) of all results. The output is sorted in the in the sequence the time measurements took place. Writes the relative time to either the shortest or the longest time interval.

Parameters:

shortestIsReference - boolean true, if the shortest time interval is the reference value (1.0). False, if the longest is the reference.

toString

public String toString()

Overrides:

toString in class Object