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

Search on column demonstration in semantic vector, Search on column demonst...

Search on column demonstration in Semantic Vector Project Description: I am preparing a research on Semantic Vectors. But I am not able to check out in a vector representa

How to construct objects with new operator, How to Construct objects with n...

How to Construct objects with new operator? class Car { String licensePlate; // e.g. "New York 543 A23" double speed; // in kilometers per hour double maxSpeed;

Create an interface with a method concatenation, a)  Using Java, create an ...

a)  Using Java, create an interface with a method called concatenation which will be implemented in the class patient in part b. b)  Using Java, write the class patient with the

What is the actionform, ActionForm is javabean which shows the form inputs ...

ActionForm is javabean which shows the form inputs containing the request parameters from the View referencing the Action bean.

Web-based application, Web-based Application: CIA - OMP Type     ...

Web-based Application: CIA - OMP Type                                         Web-based Application Role                                          Weblogic Administrato

Create an executable application in java, This assignment requires you to d...

This assignment requires you to design, implement and test a program using Java features from the first half of the subject content. You are required to implement in Java all the c

What is an intelligent system, What is an intelligent system? Intellige...

What is an intelligent system? Intelligent system is a SW programs or SW and HW systems designed to perform complex tasks employing strategies in which mimic some aspect of hum

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 do you mean by java virtual machine?, Question 1 What do you mean by ...

Question 1 What do you mean by Java Virtual Machine? Question 2 Write a simple Java program to display a string message and explain the steps of Compilation and execution in Jav

I want software tool for sequential circuit analysis, I want Software Tool ...

I want Software Tool for Sequential Circuit Analysis The output of the program could be both graphical for the diagram and the rest is console. Skills required: C++ Progra

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