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Ti è piaciuto lo script? Provalo nel Terminale MetaTrader 5
Programming Patterns - Decorator - script per MetaTrader 5
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- Pubblicato:
- 2019.09.21 17:08
- Aggiornato:
- 2019.09.29 10:23
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• Inheritance is not always flexible.
• Composition and delegation is sometimes a good alternative to dynamically add new behavior.
• Decorator type matches component type.
• Decorators change component behavior without changing the component code.
• A component may have arbitrary number of decorators.
• Decorators are transparent to the client, unless the client depends on a particular component.
RULE: Open classes for extension and close for changes.
Programming Patterns - Strategy
Encapsulating a family of interchangeable algorythms which can be modified independently from the client.
Programming Patterns - ObserverWhen the subject changes, it notifies and updates its observers, who know nothing about each other.