TimeSpanCalculator

java.lang.Object
- org.palladiosimulator.metricspec.metricentity.MetricEntity
- - org.palladiosimulator.measurementframework.listener.MeasurementSource
  - - org.palladiosimulator.probeframework.calculator.Calculator
    - - org.palladiosimulator.probeframework.calculator.internal.TimeSpanCalculator

All Implemented Interfaces:

org.palladiosimulator.commons.designpatterns.IAbstractObservable<org.palladiosimulator.measurementframework.listener.IMeasurementSourceListener>, org.palladiosimulator.metricspec.metricentity.IMetricEntity, IProbeListener

Direct Known Subclasses:

HoldingTimeCalculator, ResponseTimeCalculator, WaitingTimeCalculator
```
public class TimeSpanCalculator
extends Calculator
```
Time span calculators calculate a time span. These calculators expect two probes, each providing at least a POINT_IN_TIME_METRIC measurement. Subsequently, they calculate the time span by subtracting the point in time of the first probe from the point in time of the second probe. The final result is a (start point in time, time span)-tuple.

Field Summary
- Fields inherited from class org.palladiosimulator.probeframework.calculator.Calculator
  probes

Constructor Summary

Constructors
Constructor	Description
`TimeSpanCalculator(org.palladiosimulator.metricspec.MetricDescription metricDescription, org.palladiosimulator.edp2.models.measuringpoint.MeasuringPoint measuringPoint, List<Probe> probes)`	Default constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected org.palladiosimulator.measurementframework.MeasuringValue`	`calculate(List<ProbeMeasurement> probeMeasurements)`	Calculates a time span based on subtracting two points in time.

Methods inherited from class org.palladiosimulator.probeframework.calculator.Calculator
equals, getMeasuringPoint, hashCode, newProbeMeasurementAvailable, preUnregister

Methods inherited from class org.palladiosimulator.measurementframework.listener.MeasurementSource
addObserver, getMeasurementSourceListeners, notifyMeasurementSourceListener, removeObserver

Methods inherited from class org.palladiosimulator.metricspec.metricentity.MetricEntity
getMetricDesciption, isCompatibleWith, setMetricDescription

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - TimeSpanCalculator
```
public TimeSpanCalculator(org.palladiosimulator.metricspec.MetricDescription metricDescription,
                          org.palladiosimulator.edp2.models.measuringpoint.MeasuringPoint measuringPoint,
                          List<Probe> probes)
```
    Default constructor.
    
    Parameters:
    
    metricDescription - MetricDescription as needed by the superclass.
    
    measuringPoint - MeasuringPoint as needed by the superclass.
    
    probes - Probes as needed by the superclass.
- Method Detail
  - calculate
```
protected org.palladiosimulator.measurementframework.MeasuringValue calculate(List<ProbeMeasurement> probeMeasurements)
```
    Calculates a time span based on subtracting two points in time.
    
    Specified by:
    
    calculate in class Calculator
    
    Parameters:
    
    probeMeasurements - List containing the two points in time probes measurements.
    
    Returns:
    
    The newly calculated measurement.
    
    See Also:
    
    Calculator.calculate(java.util.List<org.palladiosimulator.probeframework.measurement.ProbeMeasurement>)