Learning Technology FrameWork.pdf

Creating an incomplete partition
FrameWork supports several types of inheritance relationships.
You’ll learn about incomplete partitions and generalizations in this
tutorial. For more information on inheritance relationships, see
Modeling with Technology FrameWork.
Creating an incomplete partition
Incomplete partitions One kind of inheritance relationship is called an incomplete
partition. An incomplete partition identifies two or more
mutually exclusive subclasses of a superclass. Each object in the
superclass may or may not also be in one of the subclasses.
In your Java class diagram, you’ll create the Applicant and Employee
Java classes. Then you’ll create an incomplete partition of the
Person class containing the Applicant and Employee classes. This
will show that both applicants and employees have the properties
of people and that a person cannot be both an applicant and an
employee at the same time. It also shows that there can be people
who are neither applicants nor employees.
What you do To create the two Java new classes and the incomplete partition:
1 Using the Java Class tool, create a class and place it below and
to the left of Person. Name the class Applicant.
2 Create another Java class, placing it to the right of Applicant.
Name the class Employee.
3 In the common toolbar, select the Incomplete Partition tool.
4 Click and hold on the window background outside of the
Applicant class. Then drag a bounding box around Applicant and
Employee and release the mouse button.
Lesson 5: Creating a Java Class Diagram
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