Prototype Design Pattern comes under the Creational Pattern. This pattern also is used to create object. In this pattern you create a clone of an existing object with out creating new object
Why do you clone objects?
- Creating heavy objects consume memory
- It takes time to create new object if it consumes lots of resources
Following digram shows the UML diagram of the Prototype Design Pattern
Shape
This is the interface with clone() method which is used to clone the object
Circle and Rectangle
These are concrete classes which implements the clone() of the interface
Client
This is used to create the clone using Shape class
Now we will see how we can implement Prototype Design Pattern in Visual Basic. This is the UML diagram which we can used to code in VB.NET
