IProbe

Type Parameters:

E - type of the probed element

All Superinterfaces:

MeasurementProducer<E>

All Known Implementing Classes:

AbstractProbe, ActiveUsersProbe, InterArrivalTimeProbe, InterDepartureTimeProbe, PassiveQueueLengthProbe, PassiveResourceAcquiredProbe, PassiveResourceReleasedProbe, PassiveResourceRequestedProbe, QueueLengthProbe, ResourceDemandProbe, ResourceDemandProbe, SeffActionEntryTimeProbe, SeffActionExitTimeProbe, UsageActionEntryTimeProbe, UsageActionExitTimeProbe
```
public interface IProbe<E>
extends MeasurementProducer<E>
```
A probe observes a MeasuringPoint and produces a Measurement whenever the property observed by the MeasuringPoint changes.
TODO document caching

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`disableCaching()`
`void`	`enableCaching()`
`Measurement<E>`	`getLastMeasurementOf(Object who)`	Returns the latest measurement caused by the given trigger.
`MeasuringPoint<E>`	`getMeasuringPoint()`
`static <E> IProbe<E>`	`nullProbe(E element, String property, Object... contexts)`	Constructs and returns a probe without any actual behaviour.

Methods inherited from interface edu.kit.ipd.sdq.eventsim.measurement.MeasurementProducer
forEachMeasurement

- Method Detail
  - getLastMeasurementOf
```
Measurement<E> getLastMeasurementOf(Object who)
```
    Returns the latest measurement caused by the given trigger.
    
    Parameters:
    
    who - the trigger
    
    Returns:
    
    the most recent measurement caused by the given trigger, or null, if there is no such measurement.
  - getMeasuringPoint
```
MeasuringPoint<E> getMeasuringPoint()
```
    Returns:
    
    the measuring point this probe is attached to.
  - nullProbe
```
static <E> IProbe<E> nullProbe(E element,
                               String property,
                               Object... contexts)
```
    Constructs and returns a probe without any actual behaviour. Can be used as a replacement for null.
    
    Returns:
    
    the constructed null probe.
  - enableCaching
```
void enableCaching()
```
  - disableCaching
```
void disableCaching()
```