de.jaetzold.art
Class SensorStateDecider
java.lang.Object
|
+--de.jaetzold.art.SensorStateDecider
- All Implemented Interfaces:
- StateDecider
- public class SensorStateDecider
- extends Object
- implements StateDecider
A StateDecider which delivers the value of the target-Sensor as the result to nextStateValue(double,double)
.
- See Also:
Sensor
Constructor Summary |
SensorStateDecider(Sensor targetSensor)
Constructs a new StateDecider which always uses the value of the given Sensor as the next state. |
SensorStateDecider(Sensor targetSensor,
boolean events)
Constructs a new StateDecider which always uses the value of the given Sensor as the next state. |
Method Summary |
boolean |
isCacheable()
Tells whether this instance will in the future produce the same state for the same value argument, independent of the actualState. |
double |
nextStateValue(double state,
double value)
The value returned is the one the target sensor currently has. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
SensorStateDecider
public SensorStateDecider(Sensor targetSensor)
- Constructs a new StateDecider which always uses the value of the given Sensor as the next state.
- See Also:
StateDecider.nextStateValue(double,double)
SensorStateDecider
public SensorStateDecider(Sensor targetSensor,
boolean events)
- Constructs a new StateDecider which always uses the value of the given Sensor as the next state.
If events is true a SensorListener is registered by the Sensor and the value of the last received SensorEvent is cached to be the next state-value.
- See Also:
StateDecider.nextStateValue(double,double)
isCacheable
public boolean isCacheable()
- Description copied from interface:
StateDecider
- Tells whether this instance will in the future produce the same state for the same value argument, independent of the actualState.
This can be false first and then true at a later time, but it is not legal to return false here after a return of true in the past, because the true answer before was wrong then.
- Specified by:
isCacheable
in interface StateDecider
- Following copied from interface:
de.jaetzold.util.StateDecider
- Returns:
- true if this instance guarantees, that any further call to nextStateValue() with the same value-argument returns the same state
nextStateValue
public double nextStateValue(double state,
double value)
- The value returned is the one the target sensor currently has.
- Specified by:
nextStateValue
in interface StateDecider
- Following copied from interface:
de.jaetzold.util.StateDecider
- See Also:
StateDecider.isCacheable()