Behavioral Design Patterns in C++ - Document Framework - I

The video tutorial explains the Template Method design pattern, commonly used in frameworks to allow basic implementation customization. It provides an example of a framework class that users can extend to define their own file types. The tutorial focuses on implementing a document class with a stream object and a boolean to track modifications. Clients can subclass this document class to create specific document types, such as a text document, by overriding save and load methods. The tutorial demonstrates how to implement these methods, handle file operations, and use the framework effectively.

What is the purpose of the Template Method design pattern in frameworks?

How can users customize the basic implementation provided by framework classes?

What is the significance of the 'ismodified' boolean in the document class?

What are the two virtual functions that subclasses must override in the document class?

Explain how the client can implement a text document using the framework.

Describe the process of saving a document in the framework.

What happens if a user tries to load a new file while the current document is modified?