Prototype Design Patterns | Prototype Design Pattern in Java | Design Pattern in Java

Prototype Design Patterns | Prototype Design Pattern in Java | Design Pattern in Java

In this video I am going to discuss on Prototype design pattern.
Cloning of an existing object instead of creating new one and can also be customized as per the requirement.
This patterns should be used if the cost of creating a new object is expensive and resource intensive.

Advantage:
1. This patterns save the cost of the object creation and also save the time.
2. It reduces the need of sub-classing.
3. It hides complexities of creating objects.
4. Add or remove objects at runtime.

Usage:
1. When the classes are instantiated at runtime.
2. When the cost of creating an object is expensive.

Design Patterns:

Design Pattern is a well-proved solution for commonly occuring problem in Software design.

A. Core Java Design Patterns.

1.Creational Design Pattern

Factory Pattern
Abstract Factory Pattern
Singleton Pattern
Prototype Pattern
Builder Pattern.

2. Structural Design Pattern

Adapter Pattern
Bridge Pattern
Composite Pattern
Decorator Pattern
Facade Pattern
Flyweight Pattern
Proxy Pattern

3. Behavioral Design Pattern

Chain Of Responsibility Pattern
Command Pattern
Interpreter Pattern
Iterator Pattern
Mediator Pattern
Memento Pattern
Observer Pattern
State Pattern
Strategy Pattern
Template Pattern
Visitor Pattern

B. J2EE Design Patterns.
J2EE design patterns are built for the developing the Enterprise Web-based Applications.

1. Presentation Layer Design Pattern

Intercepting Filter Pattern
Front Controller Pattern
View Helper Pattern
Composite View Pattern

2. Business Layer Design Pattern

Business Delegate Pattern
Service Locator Pattern
Session Facade Pattern
Transfer Object Pattern

3. Integration Layer Design Pattern

Data Access Object Pattern
Web Service Broker Pattern


Advantage of the Design Patterns:
1. Speed up the development process.
2. Code more flexible, reusable and maintanable.
3. Define the System architecture.



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