Object-oriented design anti-patterns
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*[[BaseBean]] - This anti pattern occurs when inheritance of implementation is used; that is a class inherits from another class not because it makes sense semantically but because it wants to use methods defined in the superclass. | *[[BaseBean]] - This anti pattern occurs when inheritance of implementation is used; that is a class inherits from another class not because it makes sense semantically but because it wants to use methods defined in the superclass. | ||
*[[Call super]] - This anti pattern occurs when a superclass requires derived classes to call an overridden method. | *[[Call super]] - This anti pattern occurs when a superclass requires derived classes to call an overridden method. | ||
| − | *[[Circle-ellipse problem]] - This anti pattern occurs when inheritance is not used correctly and the [[Liskov substitution principle | + | *[[Circle-ellipse problem]] - This anti pattern occurs when inheritance is not used correctly and the [[Liskov substitution principle]] is violated. |
*[[Circular dependency]] | *[[Circular dependency]] | ||
*[[Constant interface]] | *[[Constant interface]] | ||
Revision as of 05:08, 18 July 2009
Object-oriented design anti patterns describe bad design solutions to common problems. As such, they are essentially the opposite of conventional design patterns.
The following are common object-oriented design anti patterns:
- Anemic Domain Model - This anti pattern occurs when data and behavior is separated in the domain model.
- BaseBean - This anti pattern occurs when inheritance of implementation is used; that is a class inherits from another class not because it makes sense semantically but because it wants to use methods defined in the superclass.
- Call super - This anti pattern occurs when a superclass requires derived classes to call an overridden method.
- Circle-ellipse problem - This anti pattern occurs when inheritance is not used correctly and the Liskov substitution principle is violated.
- Circular dependency
- Constant interface
- God object
- Object cesspool
- Object orgy
- Poltergeists
- Sequential coupling
- Yo-yo problem
Many of these anti patterns are closely related to common design maxims.
