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

Travelling salesman animation, how to implement tsp problem using java appl...

how to implement tsp problem using java applet to present in form of visulation

How to scaling images in java applet, How to Scaling Images in java applet?...

How to Scaling Images in java applet? You can scale an image within a particular rectangle using this version of the drawImage() method: public boolean drawImage(Image img,

Object and Instance, What is the difference between instance and object of ...

What is the difference between instance and object of a class? Few says both are same, then why java kept both the words for same thing?

La food, The fancy new French restaurant La Food is very popular for its au...

The fancy new French restaurant La Food is very popular for its authentic cuisine and high prices. This restaurant does not take reservations. To help improve the efficiency of the

Computer application and program, Computer application and program. Proj...

Computer application and program. Project Description: I require a project done. It is a computer desktop application program. It is not very hard. Skills required: Any

Simple Program in Java, Write a programme to create a webpage that prints t...

Write a programme to create a webpage that prints the name of the STUDENT database in Wide Latin font and set the subtitle with description of the STUDENT to the screen. Set the pa

Add extra features to exciting minecraft plugin, Add extra Features to exci...

Add extra Features to exciting Minecraft plugin Project Description: I own a minecraft server and have a minigame plug-in but at the end of the game the map need to regenerat

What is difference between design and system architecture, What is differen...

What is difference between Design and System Architecture? System Architecture : It is structure of a product or procedure. Design: It is begin of the procedure of devel

How to write exception subclasses, How to Write Exception Subclasses ? ...

How to Write Exception Subclasses ? Most exception subclasses inherit all their functionality from the superclass. Each subclass majorly serves as a marker for a various types

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