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31 March 2023

Paweł Filipek

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Software Design Patterns

Design pattern / Software Design Patterns

Strategy pattern

9 April 201731 March 2019 - by Paweł Filipek - Leave a Comment

Strategy pattern What is the strategy pattern? Via wikipedia For instance, a class that performs validation on incoming data may use a strategy pattern to select a validation algorithm based …

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Design pattern / Software Design Patterns

Command pattern

3 December 201631 March 2019 - by Paweł Filipek - 1 Comment

Command pattern Another design pattern it is very popular.I’s used inter alia in approach CQRS (for more information about CQRS). What is command pattern and when to use it: Sometimes, …

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Design pattern / Software Design Patterns

Observer pattern

29 November 201631 March 2019 - by Paweł Filipek - Leave a Comment

Observer pattern Today, I will try to present a observer pattern.It is part of behavioral patterns and is relatively simple so I think it’s worth it to present. Subject – the object of …

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State pattern
Design pattern / Software Design Patterns

State pattern

17 November 201631 March 2019 - by Paweł Filipek - 1 Comment

State pattern Design pattern, which aims to facilitate the extension of the building of the new states. With the change of state is changing the behavior of object. States are …

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Design pattern / Software Design Patterns

Composite pattern

12 November 201631 March 2019 - by Paweł Filipek - 2 Comments.

Composite is a structural design patterns. Via wikipedia: The composite pattern describes that a group of objects is to be treated in the same way as a single instance of …

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