Behavioral Design Patterns in C++ - Spreadsheet Application - III

The lecture discusses the limitations of the current export function, which violates the open-closed principle due to its reliance on conditional statements. It explores the idea of overriding the export function by creating a subclass, but faces challenges with private member access and runtime format selection. The lecture highlights the issues of tight coupling and principle violations, such as Liskov substitution and single responsibility, concluding with a promise to address these in the next lecture.

What is the open-closed principle and how does it relate to the export function discussed in the lecture?

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Explain the issue with making the export function virtual in the data model class.

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What changes were proposed to the data model class to allow overriding the export function?

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Discuss the implications of making the sheet member variable protected in the data model class.

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What are the limitations of creating an instance of the HTML data model for exporting data?

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How does the HTML data model violate the Liskov substitution principle?

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What is the proposed solution for adding new file formats in the data model class?

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