About Question enthuware.ocpjp.v7.-2-.1170 : Is the Composite pattern on the exam?

[Student]

Erm, is the Composite pattern even on the exam? Last time I checked it's just the Factory, Singleton and DAO patterns.
Thanks.

[admin]

No, it is not officially on the exam but some candidates have reported seeing this pattern in the options.

HTH,
Paul.

[Student]

OK thanks.

[toolforger]

Option 4 seems incorrect.
I agree that Composite does (in a sense) restrict what the aggregate functionality can do, but that's not a drawback, that's just how Composite is defined, i.e. a restriction on the scenarios where Composite is applicable
It's just as a bicycle not having a motor is not a drawback, but just the definition of a bicycle. If you want a motor you buy a motorcycle.

[admin]

Option 4 seems incorrect.
I agree that Composite does (in a sense) restrict what the aggregate functionality can do, but that's not a drawback, that's just how Composite is defined, i.e. a restriction on the scenarios where Composite is applicable
It's just as a bicycle not having a motor is not a drawback, but just the definition of a bicycle. If you want a motor you buy a motorcycle.

That is a fair point. "Limitation" is probably more suitable word than drawback.
Paul.