Package org.hippoecm.frontend.model.event

Class ObservablePropertyModel<T>

  • All Implemented Interfaces:
    Serializable, 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

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method 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

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

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

        getChainedModel, getInnermostModelOrObject, getTarget, setTarget

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

        as, combineWith, filter, flatMap, getObject, isPresent, map, orElse, orElseGet, 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
        Specified by:
        detach in interface org.apache.wicket.model.IModel<T>
        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