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

Advantages java layout managers over traditional windowing, What are the ad...

What are the advantages that Java's layout managers provide over traditional windowing systems ?

Describe the java.lang package, Describe the java.lang package ? Each p...

Describe the java.lang package ? Each package describes a number of classes, exceptions, interfaces, and errors. For instance, in Java 1.1 the java.lang package holds these:

Universal android and ios, Universal Android and iOS, Multipurpose Testing ...

Universal Android and iOS, Multipurpose Testing Application - Based on Phonegap Project Description: Universal Android and iOS, Multipurpose Testing Application Based on Phon

RatinalAssignment, 1. Make a class Rational to provide at least following m...

1. Make a class Rational to provide at least following methos and constructors: Rational r1= new Rational (3,5); Rational r2= new Rational (4,7); Rational r3=r1.add(r2);

I want android developers, Project Description: I require some android d...

Project Description: I require some android developers in order to outsource projects. I am looking for good price and good quality. Skills required: Java, Android

Classes, what is the default modifiers for methods in interface

what is the default modifiers for methods in interface

Explain continue statement with example, Explain continue statement with ex...

Explain continue statement with example? It is sometimes essential to exit from the middle of a loop. Sometimes you'll need to begin over at the top of the loop. Sometimes you'

What are the non-final functions in java object class?, The non-final funct...

The non-final functions are clone (), finalize (), toString (), equals () , hashCode () and. The other methods like wait (), getClass (), notifyAll (), notify () etc are final

Build KNN Classifier in Java, Can you help? this assignment I will need to ...

Can you help? this assignment I will need to build a very straightforward and fully functional machine learning classifier with the K-Nearest Neighbor (KNN) algorithm. The KNN mode

Area under curve., write a program to find the area under the curve y=f(x) ...

write a program to find the area under the curve y=f(x) between x=a and x=b,integrate y=f(x) between the limits of a and b.   #include float start_point,

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