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

2d world of ants and doodlebugs, We have to create a world class that conta...

We have to create a world class that contains a 2d array then create an abstract class called organism that contains move() method the organism should move randomly one step at the

What is an abstract class in java, Question: (a) Java does not support ...

Question: (a) Java does not support multiple inheritance but does provide the concept of ‘interface'. Explain how interfaces can help a programmer to implement multiple inheri

What is a packet in the network environment, What is a packet within the ne...

What is a packet within the network environment? What kind of information does it contain? A packet is the shortest unit of data transmitted over a computer network. It's a mes

Websphere - weblogic, WebSphere - Weblogic and Apache: Building/Ins...

WebSphere - Weblogic and Apache: Building/Installation  and maintenance of Solaris and Linux machines. Exposure to Sun Hardware : Sunfire v880,v890.V440,X4600

Benefits of aop (aspect oriented programming), Benefits of AOP (Aspect Orie...

Benefits of AOP (Aspect Oriented programming) OOP can give the system level code like transaction management, logging, security etc to scatter throughout the business logic. A

Mention five applications of artificial intelligent system, Mention any fiv...

Mention any five applications of Artificial Intelligent System? 1)Medical Diagnosis 2)Robots 3) Games 4) Business intelligence 5)Image Recognition.

Web application in Java.., 1. Go to www.bytesizebook.com 2. Follow the firs...

1. Go to www.bytesizebook.com 2. Follow the first link: Guide to Web Development with Java 3. Click on Examples tab 4. Go down to Chapter 4 to find all jar folders, packages, class

Explain traversing through a collector using iterator, Explain traversing t...

Explain traversing through a collector using Iterator. Ans. We can access each element in Collection by using Iterators regardless of how they are organized in collector. Ite

Prepare an android keyboard, Prepare an android keyboard Project Descrip...

Prepare an android keyboard Project Description: I want to prepare an android keyboard that have many features.( i will describe later) I want the full app and a trial ver

State the java virtual machine and runtime environment, Java Virtual Machin...

Java Virtual Machine & Runtime Environment Basic Concept When you write a program in C++ it's called source code. C++ compiler converts this source code into the machine c

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