Säiliöluokka

Säiliöluokka is a Finnish term that translates to "container class" or "wrapper class" in English. In programming, it refers to a class whose primary purpose is to hold and manage instances of another class or data type. These classes often provide additional functionality beyond simple data storage, such as methods for manipulating the contained data, enforcing constraints, or handling specific behaviors related to the contained object.

The concept of a container class is fundamental to object-oriented programming and is closely related to design patterns like Decorator, Adapter, and Proxy. For example, a string class in many programming languages can be considered a container class for a sequence of characters. Similarly, a `List` or `Array` class is a container for multiple elements of a specific type.

Säiliöluokka can also be used in contexts where a class needs to encapsulate or wrap an existing object to modify or extend its behavior without altering the original object's definition. This is often done to adhere to principles like the Open/Closed Principle, allowing for enhanced functionality to be added externally. The specific implementation and usage of a säiliöluokka can vary significantly depending on the programming language and the problem being solved.