Wellington Dot Net User Group Meeting
- NULL Object Pattern - useful to declutter your code. Requires creation of a Null object in order to remove requirement to always check whether your object exists.
- Command Pattern - Create function objects that interact with the object hierarchy.
- Effects: Localises code; Undo/Compensation; New function: New object.
- Considerations: Open-closed principle; # Classes; Likelihood of changes
- Emancipated Objects Pattern - make objects responsibile for maintaining their own state.
- Effects: Read-only properties; Mutator methods; Validation
- Considerations: Applicability; Reusability; ORMs
- Proposal Pattern - Complex Domain Factories. Explictly model the process that leads up to creation of the original object.
Effects: Natural Validation; Reduced Complexity; Increased Flexibility; Error Tolerant.
Considerations: Process Complexity; Process Duration.
- State Pattern - Complex Domain Behaviour. Partially change the type of the object by swapping out behaviours based on state.
- Effects: Switching removed; Grouped behaviour
- Considerations: # Classes; Encapsulation; Complexity of Behaviour
