Package org.hippoecm.frontend.model
Class ObservableModel<T extends Serializable>
- java.lang.Object
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- org.apache.wicket.model.Model<T>
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- org.hippoecm.frontend.model.ObservableModel<T>
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- All Implemented Interfaces:
Serializable
,org.apache.wicket.model.IDetachable
,org.apache.wicket.model.IModel<T>
,org.apache.wicket.model.IObjectClassAwareModel<T>
,org.apache.wicket.util.io.IClusterable
,IObservable
public class ObservableModel<T extends Serializable> extends org.apache.wicket.model.Model<T> implements IObservable
AnIModel
that is observable by plugins.- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description ObservableModel(T object)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object obj)
Equivalence of observables; observation will only be started on one instance.static <T extends Serializable>
ObservableModel<T>from(IPluginContext context, String id)
Retrieve the model object from the context with specific id.int
hashCode()
void
notifyObservers(EventCollection events)
void
setObject(T object)
void
setObservationContext(IObservationContext context)
Before observation is started on the observable, an observation context is injected by the observer registry.void
startObservation()
When the firstIObserver
of this observable is registered with the observer registry, observation is started.void
stopObservation()
When the lastIObserver
unregisters, observation is stopped.-
Methods inherited from class org.apache.wicket.model.Model
detach, getObject, getObjectClass, of, of, of, ofList, ofMap, ofSet, toString
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Constructor Detail
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ObservableModel
public ObservableModel(T object)
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Method Detail
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setObject
public void setObject(T object)
- Specified by:
setObject
in interfaceorg.apache.wicket.model.IModel<T extends Serializable>
- Overrides:
setObject
in classorg.apache.wicket.model.Model<T extends Serializable>
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setObservationContext
public void setObservationContext(IObservationContext 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 interfaceIObservable
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startObservation
public void startObservation()
Description copied from interface:IObservable
When the firstIObserver
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 interfaceIObservable
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stopObservation
public void stopObservation()
Description copied from interface:IObservable
When the lastIObserver
unregisters, observation is stopped. Any listeners or observers registered by the observable must be unregistered by the implementation.- Specified by:
stopObservation
in interfaceIObservable
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notifyObservers
public void notifyObservers(EventCollection events)
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equals
public boolean equals(Object obj)
Description copied from interface:IObservable
Equivalence of observables; observation will only be started on one instance.- Specified by:
equals
in interfaceIObservable
- Overrides:
equals
in classorg.apache.wicket.model.Model<T extends Serializable>
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hashCode
public int hashCode()
- Specified by:
hashCode
in interfaceIObservable
- Overrides:
hashCode
in classorg.apache.wicket.model.Model<T extends Serializable>
- See Also:
IObservable.equals(Object)
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from
public static <T extends Serializable> ObservableModel<T> from(IPluginContext context, String id)
Retrieve the model object from the context with specific id. If it is not found, create and register a new model instance.
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