Geek Answers Handbook

Decorative design

I was looking at a decorator design template (I am new to the topic of design patterns) and I was wondering

  • Can a decorator interact with multiple components?
  • If A is a decorator of component B, can A have operations that B does not have?

Thanks.

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3 answers

1.) Yes
2.) Yes, this is the main point of the decorator. To add functionality to the object that it decorates.

Decorator drawing

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Decorator simply adds functionality to the class that it decorates. Varieties like icing on a cake. You can decorate more than one component, but it looks more like Facede, although I could be wrong. The second question is - the shell adds functionality, but can also mask it

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  • Yes
  • What else would be a decoration?
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