|
Why prefer composition over inheritance? What trade-offs are there for each approach? When should you choose inheritance over composition?
Started by Readonly on
, 18 posts
by 18 people.
Answer Snippets (Read the full thread at stackoverflow):
Prefer Composition Over Inheritance
Think or conditions, then use Composition : Refer ....
If you need to model substitutability.
Chapter 34 ("Prefer composition to inheritance") of "C++ Coding Standards" by Sutter/Alexandrescu i.e.
|
|
Possible Duplicate:
Aggregation verses Composition
Whats the difference between Aggregation and composition? and where we use then specifically.
Started by Azhar on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
This might be helpful
http://stackoverflow.com/questions/734891/aggregation-verses-composition.
|
|
What is the difference between composition and aggregation? can anybody give me a sample of this OOAD?
Started by ariso on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Http://en.wikipedia.org/wiki/Object-oriented_programming....
Relevant answer to your question here: http://ootips.org/uml-hasa.html
In short: both composition is that with composition, the whole is responsible for creating (and deleting) its part s.
|
Ask your Facebook Friends
|
Hi,
How do I/(what is the best way to) implement composition and aggregation in C#?
Thanks 123Developer
Started by 123Developer on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
That's a pretty abstract question, given that both composition & aggregation are pretty consider a Car having an Engine....
Difference (in ownership) between strict composition and aggregation blurs a little - so in general (when fields...
|
|
What is the difference between aggregation, composition and dependency?
Started by sevugarajan on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Composition
Body->Blood Cell
When the Body object and the Students still exist....
Aggregation and composition are almost completely identical except that composition is used when, the tires do not necessarily have to be destroyed.
|
|
What exactly is web service composition?
Started by Lawrence A. Contreras on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Web Service Composition
Composition refers to the way something is build, the new term.
|
|
What is the difference between different types of association i.e. aggregation, composition and dependency? explain with the help of code examples(in java, C++ or pseudo code).
Started by atscool on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Follow these links :
Aggregation (C++)
Composition (C++)
Dependency.
Object composition wikipedia article might be helpful.
|
|
I thought to seek this answer from stackoverflow community that how to decide to go for composition or generalization when we are designing classes.
Started by Kunal S on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
But a Vehicle is a generalization of a Car, because you can have in C++), you should prefer composition over....
This a composition relationship.
composition when you have a class that has a set of another objects, in any quantity.
|
|
When I design classes and have to choose between inheritance and composition, I usually use the rule of thumb: if the relationship is "is-a" - use inheritance, and if the relationship is "has-a" - use composition.
Is it always right?
Thank you.
Started by Igor Oks on
, 10 posts
by 10 people.
Answer Snippets (Read the full thread at stackoverflow):
( Added : the original version of question answer from "No" to "Yes".)
And use composition by default; only use inheritance when necessary to sum it up is:
Prefer composition....
If the relationship is "has-a", use composition.
No Yes.
|
|
I'm taking a music composition course and it's highly recommended we grab some software for music composition, the two most popular being Sibelius and Finale. They aren't overly pricey, as both have student versions, but I was wondering if anyone knew...
Started by Evan on
, 5 posts
by 4 people.
Answer Snippets (Read the full thread at superuser):
It is being translated....
It has a fantastic group of developers and wonderful support .
EDIT: As Open Source implies, this is a collaborative effort .
Still in Beta, but very useful.
Check out MuseScore http://www.musescore.org/
Its terrific and open source.
|
