Confusion with Design Pattern names

[Reema Patel]

Hello All,
I'm little comfused about different names for the same design pattern. Here is a list that I have prepared, pls correct me I i'm wrong:

1. MVC- Model View Controller/Component (after all a servlet is a web component!)
2. DTO- Data Transfer Object, I hope the other name is Value Object (VO), Transfer Object and Replicate Object
3. Front Controller/Component (controller or a component is one and the smae thing!)
4. The Data Access Component (also known as the Data Access Object- DAO)


Thanks
Reema

[Gaurav Gambhir]

1.MVC -- Model View Controller is right, as Model is also a component, view is also a component and controller is also a component
Three components are working together to perform specific functionality.
But cannot say the name of pattern as
Model View Component(which component)

2. DTO- Data Transfer Object, I hope the other name is Value Object (VO), Transfer Object and Replicate Object

Yes all refer to same pattern

3.Front Controller/Component (controller or a component is one and the same thing!)

Here yes we can refer to Front Controller as Front Component, as we are specific to particular component

Check this

4.The Data Access Component (also known as the Data Access Object- DAO)

Pattern is Data Access Object, not Data Access Component

Is this a part of Exam

Experts Comments Please ???

[Reema Patel]

Hi Gaurav,
Thanks for the prompt reply.

Although DAO pattern is not mentioned in cert objectives, but I have come across some mock exams covering this pattern.

Thanks,
Reema

[Shivani Chandna]

Infact when I read HFJS I saw only 5/6 patterns.

There was a question at the end of pattern chapter which talked of Composite Entity etc. - something which was not talked of in the chapter.

My question is - are we supposed to study all the J2EE Design Patterns?

:

[Marc Peabody]

Originally posted by Shivani Chandna:
My question is - are we supposed to study all the J2EE Design Patterns?

For the exam you only need to know the "Big 6", as listed in the objectives:
Intercepting Filter, Model-View-Controller, Front Controller, Service Locator, Business Delegate, and Transfer Object

Other patterns (even fake ones) may be listed as answer options, but only the Big 6 will ever be correct answers.