I often use a framework that allow you to inherit from a certain class, and override a method there, and it will be invoked.
from the framework point of view, how is it done ? what pattern is this ?
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I often use a framework that allow you to inherit from a certain class, and override a method there, and it will be invoked.
from the framework point of view, how is it done ? what pattern is this ?
Sounds like you are using a programming language / platform which provides metadata for the code. The metadata is used by the framework to find any classes which implement the certain class.
It’s not a specific design pattern (not one that I know of in any way) but a technique which can be applied in most modern languages. For instance, ASP.NET uses this for it’s
global.asaxfile (and I use it in a .NET framework of mine).It’s typically used for application entry points to control the lifetime of the object.