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Event sources are defined with publishes or emitter keywords.
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An emitter can be connected to at most one consumer.
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A publishes can be connected to a number of customers (the upper limit can be enforced).
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Container provides the necessary event channels for publish-kind events and consumer produces an event and hands it over to container to handle the broadcasting.
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Emit-kind events do not require such broadcast service from the container instead the component directly executes the necessary method call on the consumer.
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