![]() ![]() ![]() This type of design pattern comes under structural pattern as this pattern combines multiple criteria to obtain single criteria.įilter design pattern is useful where you want to add filters dynamically or you are implementing multiple functionalities and most of them require different filter criteria to filter something. They promote reusability which leads to a more robust and maintainable code.įilter pattern or Criteria pattern is a design pattern that enables developers to filter a set of objects using different criteria and chaining them in a decoupled way through logical operations. Q1: What is Design Patterns and why anyone should use them?ĭesign patterns are a well-described solution to the most commonly encountered problems which occur during software development.ĭesign pattern represents the best practices evolved over a period of time by experienced software developers. It is a description or template for how to solve a problem that can be used in many different situations. A design pattern isn’t a finished design that can be transformed directly into code. ![]() In software engineering, a design pattern is a general repeatable solution to a commonly occurring problem in software design. ![]()
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