Chapter 16

1. Chapter 16

2. Fig. 16.1

3. Fig. 16.2 Note: Why no arrow? Note: If Sale references nothing then the only thing it is associated with is what references it Note: association name is missing since role name of Sale is used as instance variable name in Register

4. Fig. 16.3 Note: Use attribute text when the data type identity is not important, eg primitives. visible

5. Fig. 16.4

6. Fig. 16.5

7. public class Register { private int id; private Sale currentSale; private Store: location; ... }

8. Fig. 16.6 property string

9. Fig. 16.7 method declaration return type is also typical Full Syntax: visibility name (param list):return-type {property-string} property-string: exceptions, abstract, friend, etc.

10. Fig. 16.8

11. Fig. 16.9 Dependency presence of coupling 1 mSale AClass <<method>> public void foo() { mSale.updatePriceFor(pd) } foo():void

12. Kinds of Dependency -- having an attribute of supplier type -- sending a message to a supplier using an attribute, param, local variable global variable, static method -- receiving a parameter of a supplier type -- supplier is a supertype or interface Use a dependency line when no other structural line exists.

13. doX() calls System.runFinalize() Foo System doX() runFinalize()

14. Fig. 16.11 Example: A factory “creates” an object of a separate class but has no other relationship to the object.

15. Fig. 16.12

16. Window1 <<interface>> Timer <<interface>> Timer Window3 Clock3 either one

17. Fig. 16.13 Note: Author suggests not using general aggregation; only composition.

18. Fig. 16.14 Constraints constraint: { text between braces}

19. Fig. 16.15 Qualified Association qualifier is used to select a specific object from a larger set of objects

20. Fig. 16.16 Association Class model an association with attributes and operations

21. Fig. 16.17 Singleton

22. Fig. 16.18 Template Classes

23. Fig. 16.19 User Defined Compartments

24. Fig. 16.20 An active class is one controlling its own thread

25. Fig. 16.21 in Agile, these diagrams a re drawn in parallel