Package org.jupnp.support.lastchange

Klasse LastChangeAwareServiceManager<T extends LastChangeDelegator>

java.lang.Object

org.jupnp.model.DefaultServiceManager<T>

org.jupnp.support.lastchange.LastChangeAwareServiceManager<T>

Alle implementierten Schnittstellen:

ServiceManager<T>

public class LastChangeAwareServiceManager<T extends LastChangeDelegator>
extends DefaultServiceManager<T>

Handles the "initial" event state for GENA subscriptions to services using LastChange.

When a GENA subscription is made on your AVTransport/RenderingControl service, you have to read the initial state of the service. Usually Cling would do this for you and simply access all the state variables of your service behind the scenes. But the AVTransport/RenderingControl service doesn't use regular UPnP state variable eventing internally, they rely on the awful "LastChange" mechanism for their "logical" instances.

Use this ServiceManager instead of the default one for these services.

Autor:

Christian Bauer, Amit Kumar Mondal - Code Refactoring

Verschachtelte Klassen - Übersicht

Von Klasse geerbte verschachtelte Klassen/Schnittstellen org.jupnp.model.DefaultServiceManager

DefaultServiceManager.DefaultPropertyChangeListener

Feldübersicht

Felder

Modifizierer und Typ	Feld	Beschreibung
protected final LastChangeParser	lastChangeParser

Von Klasse geerbte Felder org.jupnp.model.DefaultServiceManager

lock, propertyChangeSupport, service, serviceClass, serviceImpl

Von Schnittstelle geerbte Felder org.jupnp.model.ServiceManager

EVENTED_STATE_VARIABLES

Konstruktorübersicht

Konstruktoren

Konstruktor	Beschreibung
LastChangeAwareServiceManager(LocalService<T> localService, Class<T> serviceClass, LastChangeParser lastChangeParser)
LastChangeAwareServiceManager(LocalService<T> localService, LastChangeParser lastChangeParser)

Methodenübersicht

Modifizierer und Typ	Methode	Beschreibung
void	fireLastChange()	Call this method to propagate all accumulated "LastChange" values to GENA subscribers.
protected LastChangeParser	getLastChangeParser()
protected Collection<StateVariableValue>	readInitialEventedStateVariableValues()

Von Klasse geerbte Methoden org.jupnp.model.DefaultServiceManager

createPropertyChangeListener, createPropertyChangeSupport, createServiceInstance, execute, getCurrentState, getCurrentState, getImplementation, getLockTimeoutMillis, getPropertyChangeSupport, getService, init, lock, toString, unlock

Von Klasse geerbte Methoden java.lang.Object

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

Felddetails

lastChangeParser

protected final LastChangeParser lastChangeParser

Konstruktordetails

LastChangeAwareServiceManager

public LastChangeAwareServiceManager(LocalService<T> localService,
 LastChangeParser lastChangeParser)

LastChangeAwareServiceManager

public LastChangeAwareServiceManager(LocalService<T> localService,
 Class<T> serviceClass,
 LastChangeParser lastChangeParser)

Methodendetails

getLastChangeParser

protected LastChangeParser getLastChangeParser()

fireLastChange

public void fireLastChange()

Call this method to propagate all accumulated "LastChange" values to GENA subscribers.

readInitialEventedStateVariableValues

protected Collection<StateVariableValue> readInitialEventedStateVariableValues()
                                                                        throws Exception

Setzt außer Kraft:

readInitialEventedStateVariableValues in Klasse DefaultServiceManager<T extends LastChangeDelegator>

Löst aus:

Exception