org.hippoecm.frontend.model.event

Class ObservablePropertyModel<T>

java.lang.Object

org.apache.wicket.model.ChainingModel<T>

org.apache.wicket.model.AbstractPropertyModel<T>

org.apache.wicket.model.PropertyModel<T>

org.hippoecm.frontend.model.event.ObservablePropertyModel<T>

All Implemented Interfaces:

Serializable, org.apache.wicket.model.IChainingModel<T>, org.apache.wicket.model.IDetachable, org.apache.wicket.model.IModel<T>, org.apache.wicket.model.IObjectClassAwareModel<T>, org.apache.wicket.model.IPropertyReflectionAwareModel<T>, org.apache.wicket.util.io.IClusterable, IObservable, IObservableModel<T>

public class ObservablePropertyModel<T>
extends org.apache.wicket.model.PropertyModel<T>
implements IObservableModel<T>

A property model that observes an observable target.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ObservablePropertyModel(IObservable target, String expression)

Method Summary

Modifier and Type	Method and Description
void	detach()
void	setObservationContext(IObservationContext<? extends IObservable> context) Before observation is started on the observable, an observation context is injected by the observer registry.
void	startObservation() When the first IObserver of this observable is registered with the observer registry, observation is started.
void	stopObservation() When the last IObserver unregisters, observation is stopped.

Methods inherited from class org.apache.wicket.model.PropertyModel

of, propertyExpression, toString

Methods inherited from class org.apache.wicket.model.AbstractPropertyModel

getInnermostModelOrObject, getObject, getObjectClass, getPropertyExpression, getPropertyField, getPropertyGetter, getPropertySetter, setObject

Methods inherited from class org.apache.wicket.model.ChainingModel

getChainedModel, getTarget, setChainedModel, setTarget

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hippoecm.frontend.model.event.IObservable

equals, hashCode

Methods inherited from interface org.apache.wicket.model.IModel

getObject, setObject

Constructor Detail

ObservablePropertyModel

public ObservablePropertyModel(IObservable target,
                               String expression)

Method Detail

detach

public void detach()

Specified by:

detach in interface org.apache.wicket.model.IDetachable

Overrides:

detach in class org.apache.wicket.model.ChainingModel<T>

setObservationContext

public void setObservationContext(IObservationContext<? extends IObservable> context)

Description copied from interface: IObservable

Before observation is started on the observable, an observation context is injected by the observer registry. This context can be used to notify listeners.

Specified by:

setObservationContext in interface IObservable

startObservation

public void startObservation()

Description copied from interface: IObservable

When the first IObserver of this observable is registered with the observer registry, observation is started. Implementations must notify observers until observation is stopped.

An implementation should register listeners with external data sources, when appropriate. It is possible for an observable to register as an observer for another observable.

Specified by:

startObservation in interface IObservable

stopObservation

public void stopObservation()

Description copied from interface: IObservable

When the last IObserver unregisters, observation is stopped. Any listeners or observers registered by the observable must be unregistered by the implementation.

Specified by:

stopObservation in interface IObservable