com.sun.faban.driver.engine
Class FixedTime

java.lang.Object
  com.sun.faban.driver.engine.Cycle
      com.sun.faban.driver.engine.FixedTime

All Implemented Interfaces:

Serializable, Cloneable

public class FixedTime
extends Cycle

Implements the fixed time setting for an operation.

Author:

Akara Sucharitakul

See Also:

Serialized Form

Constructor Summary

FixedTime()

Method Summary

long	getDelay(Random random) Returns a delay time for the thread.
double	getHistogramMax() Provides the maximum value to be represented inside a histogram.
void	init(Annotation a) Initializes this cycle according to the annotation.

Methods inherited from class com.sun.faban.driver.engine.Cycle

clone

Methods inherited from class java.lang.Object

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

Constructor Detail

FixedTime

public FixedTime()

Method Detail

init

public void init(Annotation a)
          throws DefinitionException

Initializes this cycle according to the annotation.

Specified by:

init in class Cycle

Parameters:

a - The annotation

Throws:

DefinitionException - If there is an error in the annotation

getDelay

public long getDelay(Random random)

Returns a delay time for the thread. The initial delay time returned is randomly selected between 0 and the set cycle time. The subsequent times are exactly the cycle time. This is to prevent thundering of operations when using @FixedTime.

Specified by:

getDelay in class Cycle

Parameters:

random - The random number generator used

Returns:

The delay time

getHistogramMax

public double getHistogramMax()

Provides the maximum value to be represented inside a histogram.

Specified by:

getHistogramMax in class Cycle

Returns:

The max reasonable delay to be presented in the output histogram.