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

Online Store Website, Project Requirements • Create your own online store ...

Project Requirements • Create your own online store Web site, selling products of your choice. • Create pages that allow you to search and buy available products, as well as add,

Calculate Bill program, Notice that each row now has the type of customer a...

Notice that each row now has the type of customer and the additional data needed. calculateBill remains the same in Customer.  However, the calculateBill in Corporate will add a

What are the advantages of jms, One of the principal benefits of JMS messag...

One of the principal benefits of JMS messaging is that it's asynchronous. Thus not all the pieces require to be up all the time for the application to function as a whole.

Functions in javascript, The following set of short questions will focus on...

The following set of short questions will focus on getting you familiar with JavaScript functions. All functions and testing should appear in a single XHTML 1.0 Strict page. All

When should i use abstract classes and interfaces, When should I use abstra...

When should I use abstract classes and when should I use interfaces?  Use Interface, when: Design changing often or when various implementations only share method sign

Generating Dynamic form, I am having an combox box and values are retrieved...

I am having an combox box and values are retrieved from the database having inputs and labels i want to created the dynamic form accroding to user input on combox box values

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

List the precedence table, List the precedence table? At last let's add...

List the precedence table? At last let's add the && , || , & , | and ? operators to the precedence table *, /, % Multiplicative operators +, - Additi

What are the different types of actions in struts, The different types of a...

The different types of actions in Struts are: ? DispatchAction ? LookupDispatchAction ? ForwardAction ? SwitchAction ? IncludeAction

Payroll calculator, how to write aprogramm that calculates gross pay, taxe...

how to write aprogramm that calculates gross pay, taxes, and net pay for both hourly and commission employees. It will then display those results to the screen

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