Exception handling in EJB, JAVA Programming

Assignment Help:

Java has two kinds of exceptions:

1. Checked exception: handled from java.lang.Exception but not java.lang.RuntimeException.

2. Unchecked exception: handled from java.lang.RuntimeException thrown by JVM.

 

1273_Exception handling in EJB.png

 

EJB has two kinds of exceptions:

1. System   Exception :   is   an   unchecked   exception produced   from java.lang.RuntimeException.   An EJBException is an unchecked exception, which is started from java.lang.RuntimeException.

2. Application Exception : is generic to an application and thrown because of violation of business rules. An Application Exception is a checked exception that is either described by the bean developer and does not import java.rmi.RemoteException.

A  System  Exception  is  given  by  the  system  and  is  not  recoverable. Because the System Exceptions are unpredictable when they occur, the EJB container is the only one responsible for trapping the System Exceptions. The container usually wraps any RuntimeException in RemoteException, which subsequently puts thrown to the caller. In addition to intercepting System Exception the container can give the errors.

 


Related Discussions:- Exception handling in EJB

Write down the class electricitysource, Question : (a) Explain the con...

Question : (a) Explain the concept of polymorphism when used in programs using suitable examples of your own. (b) (i) Distinguish between abstract methods and non-abstrac

What is meant by universal access of internet services, What is meant by un...

What is meant by universal access of internet services ? the meaning of Universal access of internet services means same functionality to everyone.

OOP, differentiate between states and behaviors of n object

differentiate between states and behaviors of n object

A new dynamic website, A NEW Dynamic Website I have the subsequent requi...

A NEW Dynamic Website I have the subsequent requirement which needs to be designed in 30 days (Max). 1) Construct a website which is a dynamic, means allow me to change conte

Need Project Ideas.., I need some Unique Idea About my final Year Project ....

I need some Unique Idea About my final Year Project . It could be a Website or an Android application. I want to create Something very unique which in some sense benefits a society

Give an examples of access protection, Give an Examples of Access Protectio...

Give an Examples of Access Protection ? This is how the Car class would almost certainly be written in practice. Remember that all the fields are now declared private, and the

Different points where weaving can be applied, What are the different point...

What are the different points where weaving can be applied? Ans) There are three points ? Compile Time ? Classload Time ? Runtime

Why processing an unknown number of parameters, Why Processing An Unknown N...

Why Processing An Unknown Number Of Parameters ? Most of the time you have a fairly high-quality idea of what parameters will and won't be passed to your applet. Therefore som

Control graphical user interface elements, Introduction In this assign...

Introduction In this assignment you will use Processing to create some geometric objects and graphical user interface (GUI) elements that Processing itself lacks. Processing h

What does a simple spring application contain, These applications are like ...

These applications are like any Java application. They are made up of not many classes, each performing a particular purpose within the application. But these classes are configure

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