Builder

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Step-by-step construction of complex objects. Separates the construction of a complex object from its representation, allowing the same construction process to create different representations. Useful when objects have many optional parameters.

Key Properties

• Fluent Interface
• Director and Builder
• Immutable Object Construction

Related

• Abstract Factory (contrast: all at once vs step by step)
• Prototype (alternative creation pattern)

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design-patterns creational builder