"Harnessing the Specification Pattern: Streamlining and Optimizing Data Handling", Vladyslav Bardin.pdf

We will explore:
What is the Specification Pattern? Definition, history, and core concepts.
Benefits of the Specification Pattern: How it standardizes data handling processes, enhances code reusability, improves maintainability, and aids in building scalable systems.
Implementation: A step-by-step guide to implementing the Specification Pattern in a .NET environment with real-world code examples.
Real-World Examples: Case studies showcasing the successful application of the Specification Pattern in real projects.
Common Pitfalls and How to Avoid Them: Potential challenges and their solutions.

1. .NET fwdays’24
Harnessing the specification
pattern: streamlining and
optimizing data handling

2. Agenda
01
02
03
04
05
Specification pattern basics
Hands-on Experience
Case studies
Bestpractices
Conclusion

3. Problem definition
Complex Filtering
Logic
Enterprise-level
projects often have
intricate filtering
requirements
Frequent
Changes
Filtering logic frequently
changes based on
evolving business
requirements
Extensibility
An extensible system
allows for the addition
of new features or
modifications with
minimal effort
Performance
Issues
As the complexity grows,
performance issues can
arise

4. Specification pattern
Complex Filtering Logic
Enterprise-level projectsoften
have intricate filtering requirements
Flexibility
The pattern provides flexibility in combining
different specifications using logical operators
(AND, OR, NOT)
Flexibility
Specifications can be reused across different
parts of the application

5. Specification pattern

6. Specification pattern

7. Specification pattern

8. Specification pattern

9. Specification pattern

10. Specification pattern

11. Learnings
DO encapsulate each filtering criterion in its
own specification
DOuse logical operators (AND, OR, NOT)
to combine specifications
DOleverage expression trees to dynamically
construct and combine specifications at
runtime
DO NOTignore the performance implications
of combining multiple specifications
DO NOTmix filtering logic with business logic
in the same class
DO NOTneglect the maintenance of
specifications as the project evolves
DO NOThardcode filtering criteria within
specifications that should be dynamic

12. Thank you!
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