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

What is the purpose to use the enableevents method, What is the purpose to ...

What is the purpose to use the enableEvents() method?

Explain difference between an if and a switch statement, What is the differ...

What is the difference between an if statement and a switch statement? The if statement is used to select between two alternatives. It uses a boolean expression to decide whi

Functions of specific codes, Please can you write some codes and their func...

Please can you write some codes and their functions too. At least 10! Please

Explain the essential api concepts associated with j2me, Question : (a)...

Question : (a) Class file verification in CLDC is different from class file verification in J2SE. Explain and discuss how and why it is different, illustrating your answer

What is the difference between inner class and nested class, What is the di...

What is the difference between inner class and nested class? When a class is explained within a scope od another class, then it becomes inner class. If the access modifier o

What are the basic advantages of jms, JMS is asynchronous in nature. Theref...

JMS is asynchronous in nature. Therefore not all the pieces need to be up all the time for the application to function as a whole. Even if the receiver is down the MOM will kept th

Android app for evaluating of distance, Android app for evaluating of dista...

Android app for evaluating of distance Project Description: The request is to prepare an app for Android. The application needs to run on tablet (7 "or larger) and the layout

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