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

Write a program to add of doubles in java, Write a program to add of double...

Write a program to add of doubles in java? Doubles are treated much the similar way, but now you obtain to use decimal points in the numbers. This is a same program which does

Java remote method invocation (RMI) architecture, Java Remote Method Invoca...

Java Remote Method Invocation (RMI): It gives a way for a Java program on one machine to interact with objects residing in different JVMs. The important blocks of the RMI arc

Develop a fantasy football, Need to develop a Fantasy football Project D...

Need to develop a Fantasy football Project Description: I am seeking to build a Fantasy football website. i already have an example of existing website. i want the exact same

Java error handling mechanism, Errors: When a dynamic linking failure or ...

Errors: When a dynamic linking failure or some other "hard" failure in the virtual machine happens, the virtual machine gives an Error. Typical Java programs could not find Error

Write a short Java application that stores words in an Array, Write a short...

Write a short Java application that stores words in an Array or ArrayList. You get to pick the number of words to store. Generate a random number between 0 (inclusive) and the leng

Data structure of different delimiters, In this experience you will make th...

In this experience you will make the neophyte Java programmer happy by solving, to a limited extent, an age-old problem in programming:  mismatched delimiters.  As we all know, eve

INHERITANCE, Did Java support hybrid inheritance?

Did Java support hybrid inheritance?

Want an experienced ios and android expert, Want an Experienced iOS and And...

Want an Experienced iOS and Android expert Project Description: I am seeking a super talented team or Individual for a Real Estate app. The project wants to get done in a ver

Encapsulation, Defines to keeping all the related members together in an ob...

Defines to keeping all the related members together in an object. Specifying member variables as private may hide the methods and variables. Objects should hide their inner working

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