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views:

47

answers:

1
Q: 

IoC: advantages of using a child container in web based app

I'm interested in knowing if there are any advantages to creating a child container for each request in a web based application?

The tech stack I'm using includes StructureMap & ASP.NET MVC, which is not particularly relevant but included as background info.

A: 

Without a child container, the application container would otherwise be responsible for holding all instances created during the application's lifetime.

That is an enormous memory leak.

Bryan Watts  2010-06-07 22:35:57
why is it memleak?
zerkms  2010-06-07 22:41:26
Surely this an assumption of how the container is implemented and it disposes of instances?
AWC  2010-06-07 22:58:09
@AWC: I am making the assumption that containers, in general, track the instances they create. That is a solid assumption for any implementation of an IoC container, otherwise "container" wouldn't be a very fitting name. I make no assumptions about disposal: I simply mean that if a container goes out of scope, its objects go with it.
Bryan Watts  2010-06-08 00:01:13

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