headfirst.observer.WeatherStation

Class WeatherData

java.lang.Object

headfirst.observer.WeatherStation.WeatherData

All Implemented Interfaces:

Subject

public class WeatherData
extends java.lang.Object
implements Subject

Field Summary

Fields

Modifier and Type	Field and Description
private float	humidity
private java.util.ArrayList<Observer>	observers
private float	pressure
private float	temperature

Constructor Summary

Constructors

Constructor and Description
WeatherData()

Method Summary

Modifier and Type	Method and Description
float	getHumidity()
float	getPressure()
float	getTemperature()
void	measurementsChanged()
void	notifyObservers()
void	registerObserver(Observer o)
void	removeObserver(Observer o)
void	setMeasurements(float temperature, float humidity, float pressure)

Methods inherited from class java.lang.Object

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

Field Detail

observers

private java.util.ArrayList<Observer> observers

temperature

private float temperature

humidity

private float humidity

pressure

private float pressure

Constructor Detail

WeatherData

public WeatherData()

Method Detail

registerObserver

public void registerObserver(Observer o)

Specified by:

registerObserver in interface Subject

removeObserver

public void removeObserver(Observer o)

Specified by:

removeObserver in interface Subject

notifyObservers

public void notifyObservers()

Specified by:

notifyObservers in interface Subject

measurementsChanged

public void measurementsChanged()

setMeasurements

public void setMeasurements(float temperature,
                            float humidity,
                            float pressure)

getTemperature

public float getTemperature()

getHumidity

public float getHumidity()

getPressure

public float getPressure()