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

Polymoethism, write a java program to test for class Person Student facult...

write a java program to test for class Person Student faculty Employee

Query and update the text database for a library , Implement a program to q...

Implement a program to query and update the text database for a library using a client/server model allowing multiple clients safe access to the database, and using a producer-cons

Imagemagick or same as text png generation, Imagemagick or same as text png...

Imagemagick or same as text png/jpg generation expert needed Project Description: Require someone who is experienced with generating text images. You will use any of the soft

Difference between java mail and jms queue, JMS is the ideal high-performan...

JMS is the ideal high-performance messaging stage for intra business messaging, with full programmatic control over quality of service and delivery options. JavaMail gives lowes

Methods, I need the five methods public class Ex1Program { public void...

I need the five methods public class Ex1Program { public void start() { // Step 1. Declare and construct an array of 19 Movie objects (call the array films)

We are in need of programmer, We are in need of Programmer In search of ...

We are in need of Programmer In search of someone who know java well enough to work under my in-house programmer and take work form him to keep the project moving. The project d

What is file transfer protocol, What is File Transfer Protocol? This pr...

What is File Transfer Protocol? This protocol is used to upload the files on remote computers. This is used to transfer files among computer on TCP/IP network e.g. internet and

Why uploading a web page is important, Why uploading a web page is importan...

Why uploading a web page is important? Describe in 2 - 3 lines? Through only uploading webpage we could place our data so that another can reach up to what we have loaded. Uplo

Where the local varible declared, Where the local varible declared? Dec...

Where the local varible declared? Declaring variables within a function, makes them local .They are available only within that function and hold no meaning outside of it

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