You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
36 lines
785 B
Ruby
36 lines
785 B
Ruby
# Factory pattern is one of most used design pattern in Object oriented design.
|
|
# This type of design pattern comes under creational pattern as this pattern
|
|
# provides one of the best ways to create an object. In Factory pattern, we
|
|
# create object without exposing the creation logic to the client and refer to
|
|
# newly created object using a common interface.
|
|
|
|
# Classes witch are used in factory
|
|
class Rectangle
|
|
# Implementation
|
|
end
|
|
|
|
class Square
|
|
# Implementation
|
|
end
|
|
|
|
class Circle
|
|
# Implementation
|
|
end
|
|
|
|
# Factory
|
|
class ShapeFactory
|
|
def get_shape(type)
|
|
case type
|
|
when :rectangle then Rectangle.new
|
|
when :square then Square.new
|
|
when :circle then Circle.new
|
|
end
|
|
end
|
|
end
|
|
|
|
# Usage
|
|
|
|
shape_factory = ShapeFactory.new
|
|
square = shape_factory.get_shape :square
|
|
|