Package com.vaadin.collaborationengine

Interface CollaborationMessageSubmitter

All Superinterfaces:

Serializable

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface CollaborationMessageSubmitter
extends Serializable

Submitter of messages. A submitter can be set on a CollaborationMessageList to setup the message appending logic when the connection to the associated topic is activated and also to return a callback to handle connection deactivation (e.g. disabling an input field).

Since:

3.1

Author:

Vaadin Ltd.

See Also:

• CollaborationMessageList.setSubmitter(CollaborationMessageSubmitter)

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	CollaborationMessageSubmitter.ActivationContext	The activation context of a CollaborationMessageSubmitter.

Method Summary

Modifier and Type	Method	Description
com.vaadin.flow.shared.Registration	onActivation(CollaborationMessageSubmitter.ActivationContext activationContext)	Handles the activation of the submitter, for example setting up an input component to append new messages using the CollaborationMessageSubmitter.ActivationContext.appendMessage(String) method.

Method Details

onActivation

com.vaadin.flow.shared.Registration onActivation(CollaborationMessageSubmitter.ActivationContext activationContext)

Handles the activation of the submitter, for example setting up an input component to append new messages using the CollaborationMessageSubmitter.ActivationContext.appendMessage(String) method. The returned Registration callback can be used to handle the deactivation of the submitter, for example to disable an input component.

Parameters:

activationContext - the activation context

Returns:

the registration which will be removed when the connection is deactivated, not null