Composition??

led mike

Germyan wrote:

So the Carburetor and Car is a software world example??.. I don't think so..

Is the Carburetor and Car the only example on that page??.. I don't think so.. But, again I don't expect you are someone that reads technical information efficiently.

Germyan wrote:

I think that WIKI example is a poor one and your answer is also a poor one..

I think your effort is a poor one, your reply is a poor one, and it's a fair assumption you are a poor one.

led mike

Shog9 0

Wait - just what do you think aggregation is? And why do you think composition isn't aggregation? :suss:

Lost User

Germyan wrote:

but the practicality of the class red is questionable.. I think there are better ones..

you just cant please some people

Germyan

You can bring up definition, but as a software developer and a one who visit code-project regularly, show me a real place where you have ever used this.. I can bring you thousand of cut and paste definitions as well as physical world's examples.. but the question is something else..

Ennis Ray Lynch, Jr. wrote:

I don't see what the big deal is.

Then you stay out of this.. This is a challenge if you are ready to accept it accept, if not you can go away.. I am sorry if it is rude :rolleyes:

Ennis Ray Lynch Jr

Poor communication is a challenge best left to those with weak minds.

Need a C# Consultant? I'm available.
Happiness in intelligent people is the rarest thing I know. -- Ernest Hemingway

Germyan

Come up with valid facts.. I like to hear you. :~ Anyway, I like, if you can stick with the OP, rather than shooting off target to cover your not knowingness. :( You don't have an answer do you?? G.

Germyan

Ennis Ray Lynch, Jr. wrote:

Poor communication is a challenge best left to those with weak minds.

Don't shoot off target.. If the communication is the problem I will try my best to correct it. However the OP question is a simple one.. show me a example where you really used composition in any of your system. Isn't that not clear? G.

Germyan

I am referring to the definitions, composition is a special type of a aggregation, so I am not telling that composition is not aggregation. But what I said was that the example you gave does not have that specialty to recognize as it is composition. G.

Shog9 0

Germyan wrote:

But what I said was that the example you gave does not have that specialty to recognize as it is composition.

Ok then. Please explain to me what's missing in my example.

led mike

I believe the section of that wikipedia page on Aggregation covers the topic very clearly and correctly. But of course you would have to read it to know that wouldn't you now?

Germyan wrote:

You don't have an answer do you??

I know I have an answer to the problem called Germyan. I won't read any more of your messages. X|

led mike

Germyan

Josh Gray wrote:

you just cant please some people

:confused::confused: G.

Germyan

you are missing a important one.. when a composition is destroyed, are the objects belonging to it be destroyed as well? If the answer is NO then it is AGGREGATION. G.

Germyan

:laugh: :laugh: :laugh: I am sorry, if I did something wrong here.. but I know most people don't know the concepts they play with on day to day basis. Just thought to play on it.

led mike wrote:

problem called Germyan.

:laugh: - creative one G.

Shog9 0

Germyan wrote:

you are missing a important one.. when a composition is destroyed, are the objects belonging to it be destroyed as well? If the answer is NO then it is AGGREGATION.

AFAIK, there's a little bit more to it than that... but i'll bite: where in the example that i gave you did i imply that any part of my composite collection type would not be destroyed along with the collection? Granted, i did not explicitly state that it wouldn't leave bits and pieces of itself orphaned and scattered all over Creation... but i didn't think it was necessary to state such an obvious requirement.

Germyan

I think you said that it is a objects collection.. inside the collection you will have objects, They used a famous example to explain composition.. house vs room, can the room exist without a house?? NO Can the object exist without a collection?? YES.. so your example is not composition. I mean there are many areas, where your example violate the original definition of the composition. But, I do agree that it is the closest example, I get so far. G.

Shog9 0

Germyan wrote:

I think you said that it is a objects collection.. inside the collection you will have objects,

Ah, i get it. You thought i was describing the composition as being the storage of objects within the collection. But those aren't really part of the type itself, rather the type is defined as being able to store objects. The type itself is composed of an array and a tree. Those types make up the composition. They exist for the purpose of allowing the collection to fulfill its purpose; their definitions and lifetimes are tied to it.

Liam OHagan

No, your question was poorly worded and vague.

I have no blog...

led mike

Germyan wrote:

I am sorry, if I did something wrong here.

Ok, fair enough, it's a native english thing but don't use the word "poor" to describe peoples attempts to help you. They are freely giving you their time so even if you don't agree you should not make derogatory statements about their reply. The word "poor" is definitely negative in the english language.

led mike

Nirosh

I think both .Net and Java uses the composite relation, when define their collection classes. In that sense, the answer given here is correct. At least according to the book, but if you are against it, then,,, may be it is a good question for, who invented composition :cool:

L.W.C. Nirosh. Colombo, Sri Lanka.

Nirosh

Yes!! you are right, you get my 5

L.W.C. Nirosh. Colombo, Sri Lanka.