Chapter 9 Working with Object-Oriented Models
The following OOM model checks are made on generalizations:
| Check | Description and Correction |
|---|---|
| Redundant generalizations | Only one generalization is allowed between two classes or two interfaces.
Manual correction: Remove redundant generalizations Automatic correction: None |
| Class multiple inheritance | The following check applies only to Java and PowerBuilder.
Multiple inheritance is accepted in UML but not in this language. Manual correction: Keep single inheritance Automatic correction: None |
| Extend final class | A final class cannot be extended.
Manual correction: Remove the generalization link, or remove the final property in the parent class Automatic correction: None |
| Non-persistent specifying attribute | If a generalization has a specifying attribute, the attribute must be marked as persistent.
Manual correction: Select the Persistent checkbox on the Detail tab of the specifying attribute property sheet. Automatic correction: None |
| Generalization generic missing child type parameters | A child of a generic classifier must resolve all of the type parameters defined by its parent.
Manual correction: Resolve the missing type parameters. Automatic correction: None. |
| Generalization generic child cannot be bound | A bound classifier cannot be the child of any classifier other than its generic parent.
Manual correction: Remove the additional links. Automatic correction: None. |
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