I'm looking to see what other's do in situations where a class is dependant on other classes. For instance if the class User needs to use the class Database.

For instance, do you first create an instance of Database and pass that into a User object via the constructor or create the instance of the Database class *in* User's constructor? Or something completely different.

It's obviously dependant on the project, but I'm just speaking generally on how you've done it in the past and how you came to that decision. Just looking to spur some discussion.

Regards,
Matt

I would pass the instance via the constructor rather than create new instances within each object that requires db access.

My preferred solution is to use a registry object to store a single instance of the db, this allows access the db instance from any class.

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Any fool can write code that a computer can understand. Good programmers write code that humans can understand.

I'm currently reading through Essential Actionscript 3. I think I've used what Colin describes as composition throughout most of my OOP projects without realising the name for it:

moock>> composition vs inheritance, from essential actionscript 2.0 (eas2)

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Thanks both for your input. I'll be checking out those resources.

I've done both, and I'd probably agree with Karl. At least if you make a instance of a class and pass it in to another you could at least reuse that object somewhere else.

I would pass the instance too, by reference.

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