Package org.apache.sis.storage.event
Interface StoreListener<T extends StoreEvent>
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- Type Parameters:
T
- the type of events of interest to this listener.
- All Superinterfaces:
EventListener
public interface StoreListener<T extends StoreEvent> extends EventListener
An object which listens for events (typically changes or warnings) occurring in a resource or one of its children. The kind of event is defined by the subclass of theStoreEvent
instance given to theeventOccured(StoreEvent)
method. For example if a warning occurred while reading data from a file, then the event will be an instance ofWarningEvent
.Resource
implementations are responsible for instantiating the most specificStoreEvent
subclass for the type of events. Then, allStoreListener
s that declared an interest forStoreEvent
s of that kind are notified, including listeners in parent resources. Each listener is notified only once per event even if the listener is registered twice.- Since:
- 1.0
- See Also:
StoreEvent
,Resource.addListener(Class, StoreListener)
Defined in the
sis-storage
module
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
eventOccured(T event)
Invoked after a warning or a change occurred in a resource.
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Method Detail
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eventOccured
void eventOccured(T event)
Invoked after a warning or a change occurred in a resource. TheStoreEvent.getSource()
method gives the resource where the event occurred. It is not necessarily the resource in which this listener has been registered; it may be one of the resource children.- Parameters:
event
- description of the change or warning that occurred in a resource. Shall not benull
.
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