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

Applet draw a face , Write a Java Applet which will draw a face on applet a...

Write a Java Applet which will draw a face on applet as follows:   b)    Modify the program now by adding two Buttons (Java version of ActiveX Control) named Smily Fac

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

Explain java flow control, Explain java flow control ? if els...

Explain java flow control ? if else else if while for do while switch case break continue goto is a reserved word.

Java program need to compile, Java program need to compile Project Descr...

Java program need to compile Project Description: i have one program required to compile to run it . Skills required: Java

What is a portal?, A portal is a service or a Web site that gives broad ran...

A portal is a service or a Web site that gives broad range of services and resources like e-mail, forums, search engines, weather information, news, on-line shopping, stock quotes.

Multithreading and networking, This assignment has two main objectives. It ...

This assignment has two main objectives. It aims to establish a basic familiarity with the Java API (Java Thread class) for creating multithreaded Java application, and the Java ne

Program on object oriented technology, This assignment is intended to write...

This assignment is intended to write a simple program in Java and to use the concept of Object Oriented Technology. Open a project named "MyProject" in NetBean. Under this proje

What are the principle concepts of oops, What are the principle concepts of...

What are the principle concepts of OOPS? Principle concepts upon that object oriented programming and design rest. They are: Abstraction: Abstraction refers to the act of

Program that can read the obj file - wireframe model, We need an OpenGL - b...

We need an OpenGL - based visualisation of an OBJ-File that was created out of Maya3D. (important: we have to use OpenGL with Java - JOGL) In other words: we have an OBJ-file (a

Explain jakarta struts framework, Jakarta Struts is open source execution o...

Jakarta Struts is open source execution of MVC (Model-View-Controller) pattern for the development of web based applications. Jakarta Struts is robust architecture and can be used

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