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

Develop a java - jnlp application, Need Java/JNLP Application - GUI and Bac...

Need Java/JNLP Application - GUI and Backend Projects Project Description: I am looking for assistance in making changes to a complex java application. System launches fro

Boardcolourling, write a program to find the minimum no of colors to fill a...

write a program to find the minimum no of colors to fill a board where some of the elements of different color are already placed.

School management, i need java program for account to hold payment of stude...

i need java program for account to hold payment of student

How can we define a computer screen, How can we define a computer screen? ...

How can we define a computer screen? A computer screen is define as use to display output of computer to the user. Computer screen is consists of pixels.

I need a website to do online marketing, I need a website to do online mark...

I need a website to do online marketing Project Description: Develop a website designer/developer to develop a website from scratch. This website has to be written in Java an

What is the difference between jsp and jsf, JSP simply gives a Page which m...

JSP simply gives a Page which may contain markup, embedded Java code, and tags which encapsulate more complicated logic / html. JSF may use JSP as its template, but gives much more

Use the constructor, Can we use the constructor, instead of init(), to init...

Can we use the constructor, instead of init(), to initialize servlet? Ans) Yes. Of course you can use the constructor instead of init(). There's nothing to stop you. But you sho

Illustrate object-to-relational mapping?, O/R mapping is well suited for re...

O/R mapping is well suited for read, change, write centric applications and not suited for write centric applications where data is seldom read. Although this was usually true of m

Website for swapping and selling books, Website for swapping/selling books ...

Website for swapping/selling books Project Description: Seeking a website where students can sell and buy books. I want them to swap books as well. Payment options are requir

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