Class Observable
- java.lang.Object
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- org.hippoecm.frontend.model.event.Observable
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- All Implemented Interfaces:
Serializable
,org.apache.wicket.model.IDetachable
,org.apache.wicket.util.io.IClusterable
,IObservable
public class Observable extends Object implements IObservable, org.apache.wicket.model.IDetachable
Implementation ofIObservable
that monitors another observable. It is intended to be used by clients to delegate the task of observation to.- See Also:
- Serialized Form
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Constructor Summary
Constructors Constructor Description Observable(IObservable target)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
detach()
IObservable
getTarget()
void
setObservationContext(IObservationContext<? extends IObservable> context)
Before observation is started on the observable, an observation context is injected by the observer registry.void
setTarget(IObservable target)
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 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.hippoecm.frontend.model.event.IObservable
equals, hashCode
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Constructor Detail
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Observable
public Observable(IObservable target)
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Method Detail
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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 interfaceIObservable
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getTarget
public IObservable getTarget()
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setTarget
public void setTarget(IObservable target)
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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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detach
public void detach()
- Specified by:
detach
in interfaceorg.apache.wicket.model.IDetachable
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