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

Homework, Pick your favorite geometry formula (e.g., area of a square, peri...

Pick your favorite geometry formula (e.g., area of a square, perimeter of a triangle …) and implement it in Java. Demonstrate your code compiles and runs without issue (You can use

Uses of fileinputstream and fileoutputstream, Java Programming 1. Write...

Java Programming 1. Write a program in Java to find the highest of any five numbers. How do you compile and execute this Java program? 2. Write a program to explain the Exce

Differentiate between smtp and pop3 server, Differentiate between SMTP and ...

Differentiate between SMTP and POP3 server? SMTP (Simple Mail Transfer Protocol) is a protocol used to send and receive eMail messages over a TCP/IP network. While POP3 (Post

Application with two user transactions-java, 1.) Write an application with ...

1.) Write an application with two user transactions (login which includes viewAllStudents and viewStudent ) with full MVC architecture that displays the details of the selected

What are the important beans lifecycle methods, There are two significant b...

There are two significant bean lifecycle methods. The first one is setup which is called when the bean is loaded on to the container. The second method is the teardown method which

Kik messenger program, Kik Messenger is a plan mobile messenger like Skype....

Kik Messenger is a plan mobile messenger like Skype. It's available on each major smart phone for Android and Iphone. Here is the entire process: Could be able to add multipl

Rmi client program, In a RMI Client Program, what are the excpetions which ...

In a RMI Client Program, what are the excpetions which may have to handled Ans) a. MalFormedURLException b. NotBoundException c. RemoteException

Relate java with C/C++, Relate Java with C/C++ Very similar C/C++ synta...

Relate Java with C/C++ Very similar C/C++ syntax, operators, etc. Core language is simpler than C++ -- no pointers, no operator overloading, and no multiple inheritance.

What are the role of keywords in java, What are the role of Keywords in jav...

What are the role of Keywords in java? Keywords are identifiers such as public, static and class in which have a special meaning inside Java source code and outside of comments

Mine craft plug-in coder, Mine craft plug-in Coder Project Description: ...

Mine craft plug-in Coder Project Description: Some custom plugging for my Mine craft server. Skills required: Java, Editing

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