What are the basic different types of enterprise beans, JAVA Programming

Assignment Help:

 

Session Bean: is a non-persistent object that provides some business logic running on the server. Session beans do not provide system break down. There are two kinds of session beans

1. Stateless session beans 

2. Stateful session beans

 

Entity Bean: is a persistent object that presents object views of the data, generally a row in a database. They have the primary key as a unique key identifier. Multiple EJB clients can give each entity bean. Entity beans may provide system shutdowns. Entity beans can have two kinds of persistence

1. Container-Managed Persistence (CMP) - The container is responsible for providing the bean's state.

2. Bean-Managed Persistence (BMP) - The entity bean is responsible for giving its own state.

 

Message-driven Bean: is added with the Java Message Service (JMS) to give the ability to react as a message consumer and perform asynchronous processing between the message producer and the server.

 

 

 


Related Discussions:- What are the basic different types of enterprise beans

Create a simple object based gui application, Objective: create a simple o...

Objective: create a simple object, put that object in a simple collection class, use that object and collection in a simple GUI application. Specification:  Consider a Librar

Describe the superclass in inheritance, Describe the Superclass in Inherita...

Describe the Superclass in Inheritance ? In this example you start through defining a more common MotorVehicle class. public class MotorVehicle { private String licensePlat

Session scope and Request scope, What is the difference among session scope...

What is the difference among session scope and request scope when saving formbean? Ans) When the scope is request, the values of formbean would be there for the current request.

Why http is a stateless protocol ?, The "http protocol" is a stateless resp...

The "http protocol" is a stateless response or request based protocol. You may contain the state information between different page requests as given below: HTTP Sessions are

Elaborate with examples vector or object oriented graphics, Elaborate with ...

Elaborate with examples Vector or Object oriented graphics? Vector or Object-Oriented Graphics treats everything which is drawn as an object. Objects retain their identity afte

Are constructors inherited, Are constructors inherited ? Can a subclass ca...

Are constructors inherited ? Can a subclass call the parent class constructor and When?

Corporate web support, Corporate Web Support: Worked for CGI as Sof...

Corporate Web Support: Worked for CGI as Software Engineer in a team called CWS (Corporate Web Support). We support more than 400 applications for BELL Corporate. Here tas

MATLAB, Requested figure handle in use by another object, how do i fix this...

Requested figure handle in use by another object, how do i fix this?

Decision tree algorithm, how to give dataset to a decision tree which is wr...

how to give dataset to a decision tree which is written by java using weka software?

Create an online multiple choice quiz, Create an online multiple-choice qui...

Create an online multiple-choice quiz using JSP/Servlets technology. The quiz should draw questions from an array of predefined questions (at least fifteen). You should use a meani

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd