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

Web-based client program, Why are JSP pages the preferred API for creating ...

Why are JSP pages the preferred API for creating a web-based client program? Because no plug-ins or security policy files are required on the client systems (applet does). Also,

What is jar archives, What is JAR archives? JAR archives are ZIP archiv...

What is JAR archives? JAR archives are ZIP archives along with a different extension. They contain a hierarchy of files and directories. In spirit a JAR file can take the place

Http 404 error /myproject/controller notfound, Running a sample Java web ap...

Running a sample Java web application from the web get http 404 error

Describe general approaches to solve statelessness problem, Problem : (...

Problem : (a) One problem encountered when designing web applications is that HTTP is a "stateless" protocol. Describe two general approaches to solve the statelessness probl

Illustrate normalization? , Normalization is a design technique that is m...

Normalization is a design technique that is mostly used as a guide in designing relational databases. Normalization is necessary a two step process that gives data into tabular f

Unicode-ascii utf16-utf 8, How many bits are we used in Unicode, ASCII, U...

How many bits are we used in Unicode, ASCII, UTF-16, and UTF-8 characters?

Event handler, search a file with specific extension

search a file with specific extension

I want java web developer, Project Description: A web developer is requi...

Project Description: A web developer is required to finish a webcam site with basic account management and voting functionality. The website can make use of a third party fla

I need 3d globe application, I need 3D Globe (Android) application Proje...

I need 3D Globe (Android) application Project Description: Seeking a talented android programmer to prepare a simple app for Android tablet display which can feature a 3D glo

Describe the ? operator in java langauge, Describe The ? operator in Java l...

Describe The ? operator in Java langauge? The conditional operator just works for assigning a value to a variable, using a value within a method invocation, or in a few other w

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