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

Code for calculatr, how i made a calculator in java plz tell help me

how i made a calculator in java plz tell help me

What is the use of message object, Message is a light weight message having...

Message is a light weight message having only header and properties and no payload. Therefore if the If the receivers are to be notified about an event, and no data requires to be

What is meant by weaving, The process of applying aspects to a target objec...

The process of applying aspects to a target object to form a new proxy object is known as Weaving. The aspects are woven into the target object at the verified join points.

Array prints random numbers into string, Prompt the user for an int between...

Prompt the user for an int between an upper and lower boundary. Reuse the validateInput() method from project 2 to validate if the input is in bounds. If it is not, print an error

Differentiation between an applet and an application, Differentiation betwe...

Differentiation between an Applet and an Application ?

Padovan series, write a program in java using array and scanner class to ge...

write a program in java using array and scanner class to generate padovan series

Need minecraft bukkit plugin programmer, Need Minecraft Bukkit Plugin Progr...

Need Minecraft Bukkit Plugin Programmer I want to make my own server for Minecraft. I am in need of a experts to make custom bukkit plugins for my server. But basically I will w

I want to copy an iphone app with some changes, I want to copy an iphone ap...

I want to copy an iphone app with some changes Project Description: I want to copy an iphone app with some changes i need the best programmer to do this for me Skills r

Name conflicts when importing packages, Name Conflicts when importing packa...

Name Conflicts when importing packages It is possible which you will try to import a package which contains classes in which have the similar name as a class in your own source

What are trojan horses, What are Trojan Horses? Trojan Horses are unlik...

What are Trojan Horses? Trojan Horses are unlike viruses usually they are stand-alone programs. The look such as what they are not. They appear to be something harmless and int

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