org.xmlBlaster.util
Class StopWatch

java.lang.Object
  org.xmlBlaster.util.StopWatch

public class StopWatch
extends java.lang.Object

Measure the elapsed time.

Use this helper class if you want to measure elapsed time in some code fragment

Example:

Author:

Marcel Ruff

Field Summary

private long	startTime
private long	stopTime

Constructor Summary

StopWatch()

Method Summary

long	elapsed() Return the elapsed milliseconds since creation or since the last restart().
static void	main(java.lang.String[] args) Only for testing.
java.lang.String	nice() Returns a nice string with elapsed time.
java.lang.String	nice(boolean restart) Returns a nice string with elapsed time.
java.lang.String	nice(long iterations) Returns a nice string with elapsed time per iteration.
void	restart() Reset and start the stop watch for a new measurement cycle.
void	stop() Stop the watch
java.lang.String	toString() Nicely formatted output containing elapsed time since Construction or since last restart().

Methods inherited from class java.lang.Object

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

Field Detail

startTime

private long startTime

stopTime

private long stopTime

Constructor Detail

StopWatch

public StopWatch()

Method Detail

elapsed

public final long elapsed()

Return the elapsed milliseconds since creation or since the last restart().

Returns:

elapsed Milliseconds since creation or restart()

stop

public final void stop()

Stop the watch

nice

public final java.lang.String nice()

Returns a nice string with elapsed time. Resets the stop watch.

Returns:

The elapsed time in a nice formatted string

nice

public final java.lang.String nice(long iterations)

Returns a nice string with elapsed time per iteration. Stops the StopWatch, but does not reset the stop watch.

Returns:

The elapsed time in a nice formatted string

nice

public final java.lang.String nice(boolean restart)

Returns a nice string with elapsed time.

Parameters:

restart - true: Resets the stop watch.

Returns:

The elapsed time in a nice formatted string

toString

public final java.lang.String toString()

Nicely formatted output containing elapsed time since Construction or since last restart().

Overrides:

toString in class java.lang.Object

Returns:

The elapsed time in a nice formatted string

restart

public final void restart()

Reset and start the stop watch for a new measurement cycle.

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Only for testing.

Invoke: java org.xmlBlaster.util.StopWatch

Throws:

java.lang.Exception