19 lines
677 B
Markdown
19 lines
677 B
Markdown
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---
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layout: pattern
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title: Factory Method
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folder: factory-method
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categories: creational
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tags: pattern_tag
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---
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**Intent:** Define an interface for creating an object, but let subclasses
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decide which class to instantiate. Factory Method lets a class defer
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instantiation to subclasses.
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**Applicability:** Use the Factory Method pattern when
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* a class can't anticipate the class of objects it must create
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* a class wants its subclasses to specify the objects it creates
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* classes delegate responsibility to one of several helper subclasses, and you want to localize the knowledge of which helper subclass is the delegate
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