Re: IOC policies

[Stephen McConnell]

Leo Sutic wrote:

From: Berin Loritsch [mailto:[EMAIL PROTECTED]]
Are you saying that you have a Component that implements the "Containment" pattern (as I dubbed it), meaning that you have developed a component that also happens to be a container?

I have though about this, and basically come up with one little
issue: We have so far assumed that service dependencies can be
declared at a Type level - i.e. it is a property of the component
itself, and not something that is configurable.

A container can be a type of component - i.e. deps can be configured.

However, if the component is a container, the sub-components inside it may have dependencies that cannot be satisfied by
sub-components but must be provided to the container-component
by its container.

This use case, where the dependencies of a component is determined
by the components inside it, isn't accounted for.

Checkout the Merlin notion of a Block .. it handles the notion of container as component, depedencies that the container type has on its own deployment, management of the assembly of components it contains, and will shortly provide dynamic exposure of services under its role as a component.

Cheers, Steve.

--

Stephen J. McConnell
mailto:[EMAIL PROTECTED]
http://www.osm.net




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