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

Can a human doctor be replaced through an expert system, Can a human doctor...

Can a human doctor be replaced through an Expert System? Give reasons to support your answer. Expert System is a computer system that simulates the knowledge and expertise of a

Write a note on random access files, Question 1 What are the different typ...

Question 1 What are the different types of data types in java? Question 2 Write a note on Operator Precedence Question 3 Write a note on Random access files

Javascript, Write a JavaScript program to prompt the user for the radius of...

Write a JavaScript program to prompt the user for the radius of a sphere and call function sphereVolume to calculate and display the volume of the sphere in the status bar.

Reading or writing disk files, For this assignment, you will simulate a fil...

For this assignment, you will simulate a file system. You will be neither creating files nor reading or writing disk files. Rather, you will have a simulation of a file system that

Nested if.., WAP to input a 4 digit no and find greatest using nested if

WAP to input a 4 digit no and find greatest using nested if

Program implement class which have main string method, Implement the Money ...

Implement the Money class discussed in class. This class should represent a dollar and cents amount with 0-99 cents and the cents being the same sign as the dollars. The class shou

Describe overriding methods, Describe Overriding Methods ? Assume that...

Describe Overriding Methods ? Assume that one day you've just finished your Car class. It's been plugged into your traffic simulation that is chugging along merrily simulating

Program on remote procedure call on a cs architecture, This project simulat...

This project simulates a remote procedure call on a client-server architecture. You will create both the client and the server. The server will maintain a linked list. It must N

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