Indirect data access

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Data Access, Properties, and Methods - slide 2 : 29

Indirect data access

Data encapsulated in a class is not accessed directly from other classes

Rather, data is accessed indirectly via operations

Why indirect data access?
- Protects and shields the data
  - Possible to check certain conditions each time the data is accessed
  - Possible to carry out certain actions each time the data is accessed
- Makes it easier - in the future - to change the data representation
  - Via "compensations" programmed in the accessing operations
- Makes it possible to avoid the allocation of storage for some data
  - Calculating instead of storing