Encapsulation (OOP) (OCR A-Level Computer Science): Flashcards
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Definition of encapsulation
Definition of encapsulation
Restricts direct access to object's data & methods, ensures controlled modifications
3 things encapsulation enhances
3 things encapsulation enhances
Data security, modularity, code maintainability
Where are private attributes accessible?
Where are private attributes accessible?
Only within the class
Python private attribute symbols
Python private attribute symbols
Leading _ or double __
Purpose of public methods
Purpose of public methods
Allow controlled access to private attributes
Getter methods function
Getter methods function
Retrieve value of private attributes (read-only access)
Setter methods function
Setter methods function
Allow controlled modification with validation
Encapsulation data security benefit
Encapsulation data security benefit
Prevents unauthorised modifications, protects integrity
Validation in setters ensures
Validation in setters ensures
Data stays consistent and valid
Modularity benefit of encapsulation
Modularity benefit of encapsulation
Groups related data & methods within class
Encapsulation mistake: direct access
Encapsulation mistake: direct access
Modifying private attributes from outside class causes error
Encapsulation mistake: no validation
Encapsulation mistake: no validation
Can lead to invalid data, compromises data integrity
Ease of maintenance benefit
Ease of maintenance benefit
Changes isolated within class, doesn't affect external code