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com.vaadin.flow.component.
Interface PollNotifier
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All Superinterfaces:
All Known Implementing Classes:
public interface PollNotifier extends SerializableThe interface for adding and removing
PollEventlisteners.By implementing this interface, a class publicly announces that it is able to send
PollEventswhenever the client sends a periodic poll message to the client, to check for asynchronous server-side modifications.Since:
1.0
See Also:
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Method Summary
All Methods Modifier and Type Method and Description default RegistrationaddPollListener(ComponentEventListener<PollEvent> listener)Add a poll listener.
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Method Detail
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addPollListener
default Registration addPollListener(ComponentEventListener<PollEvent> listener)Add a poll listener.
The listener is called whenever the client polls the server for asynchronous UI updates.
Parameters:
listener- the listener to addReturns:
a handle that can be used for removing the listener
See Also:
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