Description

A Domain Event captures the memory of something interesting which affects the domain. It is strictly part of the domain model.

Where to use

• DDD (Domain-Driven Design).
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• Decoupling side effects.

Real World Example

When a user changes their address, a 'UserAddressChanged' event is created, not just a database update. This allows other systems to react.

Code Example

class DomainEvents:
    def __init__(self):
        pass

    def execute(self):
        print('Executing Domain Events')