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

Java program that reads in a file of products, Write a Java program called ...

Write a Java program called SalesInfoMiner that reads in a file of products, stored in text format (2 lines per entry). The program must then read in information about past sales t

Explain identifiers in java, Explain Identifiers in Java ? Identifiers ...

Explain Identifiers in Java ? Identifiers are the names of variables, classes, methods, packages and interfaces. Unlike literals they are not the things themselves, only ways o

How many static initializers can there, How many static initializers can yo...

How many static initializers can you have ? As many as you want, but the static initializers and class variable initializers are implemented in textual order and may not refer

Implement a java class, Your first task is to implement the Movie class to ...

Your first task is to implement the Movie class to store all the relevant information on a single DVD Movie, including its catalog number, title, year of release, rating, rental pe

Create an application for Koch’s Cottages, Create an application for Koch’s...

Create an application for Koch’s Cottages, a weekend getaway resort that rents cottages and boats to use on the local lakenimum 100 words accepted#

What is mvc, Model-View-Controller (MVC) is a design pattern put together t...

Model-View-Controller (MVC) is a design pattern put together to help control change. MVC decouples interface from business logic and data. ? Model: The model having the core of

Which is better to store data as attributes or as elements? , A question ri...

A question rising in the mind of XML/DTD designers is whether to model and encode retain information using an attribute, or alternatively, using an element. 1. Using  an  elemen

Write a program to add integer value, Write a program to add integer value?...

Write a program to add integer value? class AddInts { public static void main (String args[]) { int i = 1; int j = 2; System.out.println("i is " + i); System.out.println("

Explain data security management issue, Explain DATA SECURITY Management is...

Explain DATA SECURITY Management issue? All data in the system is extremely critical to its operation, the security of the customer's personal data is most important. Most of t

Bluej program, program to find the frequency of a digit in a number

program to find the frequency of a digit in a number

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