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

Need java, Need JAVA,SPRING,JSF(primefaces) Application Support Project ...

Need JAVA,SPRING,JSF(primefaces) Application Support Project Description: We want someone to be part of our team's new development, it's minute application but in future, cha

What is javaserver faces validation model, A device for validating the data...

A device for validating the data a user inputs to a JavaServer Faces UI component.

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

Benefits of spring framework, Benefits of Spring framework : Spring can...

Benefits of Spring framework : Spring can effectively organize your middle tier objects as given in the diagram above, whether or not you select to use EJB. Applications create

What are separators in java, What are separators in java? Separators he...

What are separators in java? Separators help elaborates the structure of a program. The separators used within HelloWorld are parentheses, ( ) , braces, { } , the period, .

How the jms is different from rpc, In RPC the method invoker waits for the ...

In RPC the method invoker waits for the method to finish implementation and return the control back to the invoker. Therefore it is completely synchronous in nature. Whereas in JMS

Package inheritance hierarchy program, (Package Inheritance Hierarchy) Pack...

(Package Inheritance Hierarchy) Package-delivery services, such as FedEx®, DHL® and UPS®, offer a number of different shipping options, each with specific costs associated. Create

Servlet, i nedd servlet basics

i nedd servlet basics

String concatenation and comparison, String concatenation and comparison ...

String concatenation and comparison public class StringTest { public static void main(String[] args) { int i = 4; int j = 5; System.out.println ("Hello" + i); // wi

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