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

Java., the textbok is Introduction to Java™ Programming, Brief Version, Eig...

the textbok is Introduction to Java™ Programming, Brief Version, Eighth Edition Week 8 Exercises Chapter 8 Programming Exercises from Pages 295 - 299. Do Exercise Problems 2,

#titleArray to store 10messages of type String.., AskWrite an application t...

AskWrite an application that uses an Array to store 10messages of type String. You will store this Array with 10 messages of your choosing. For example, a message could be “I love

How would you interact between servlets and applets? , We may use the java...

We may use the java.net.URL and java.net.URLConnection classes to start a standard HTTP connection and "tunnel" to a Web server. The server then gives this information to the s

Assistance for json authentication problem rss/aol/android, Assistance for ...

Assistance for JSON authentication problem RSS/AOL/Android The key problem we face is how to authenticate afterward the user logged in the webview as well as then parse the JSON

Write responsibility of developer-executive -support team, Write responsibi...

Write responsibilities of the followings 1. Developer a) Module level design. b) Coding c) Unit testing 2. Executive Team a) Responsible for the day to day operations. b) A

Create an applet for the central museum, 1) Central museum is one of the fa...

1) Central museum is one of the famous tourist places in london. They ask comments from every customer visiting them.  For that, they maintained one register to store visitor;s com

How we use a car object in a different class, How we Use a Car object in a ...

How we Use a Car object in a different class ? class Car { String licensePlate; // e.g. "New York 543 A23" double speed; // in kilometers per hour double maxSpeed;

Events calendar for existing website, Looking for: responsible, trustworthy...

Looking for: responsible, trustworthy, accountable, and knowledgeable CakePHP developer and web designer with great communication skills. I'm seeking great partnership and if th

Explain javamail, Normal 0 false false false EN-IN X-...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

What is jdbc abstraction and dao module, Using this module we can keep up t...

Using this module we can keep up the database code clean and easy, and prevent problems that result from a failure to close database resources. A new layer of meaningful exceptions

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