Message-to-self

A message-to-self is interpreted as an event if the instance is a reactive class. If the instance is a nonreactive class, a message-to-self is interpreted as a primitive operation.

A message-to-self is shown by an arrow that bends back to the sending instance. The arrow can be on either side of the instance line. If the message-to-self is a primitive operation, the arrow folds back immediately. If the message-to-self is an event, the arrow might fold back sometime later.

Sequence diagram showing message-to-self

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