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

HELP, Design and implement an application that reads a sequence of up to 25...

Design and implement an application that reads a sequence of up to 25 pairs of names and postal (ZIP) codes for individuals. Store the data in an object designed to store a first n

What is rmi, RMI is a set of APIs that permits to build distributed applica...

RMI is a set of APIs that permits to build distributed applications. RMI uses interfaces to explain remote objects to turn local method invocations into remote method invocations.

Write a program using local variable, Write a program using local variable ...

Write a program using local variable Public void someMethod( ) { int x; //local variable System.out.println(x); // compile time error } - Constructor - Doesn't

What content issues is happened in java language, What Content Issues is ha...

What Content Issues is happened in java language? Some people claim in which Java is insecure since it can show the user erotic pictures and play flatulent noises. By this stan

How to scaling images in java applet, How to Scaling Images in java applet?...

How to Scaling Images in java applet? You can scale an image within a particular rectangle using this version of the drawImage() method: public boolean drawImage(Image img,

Relate in brief - microsoft vs java, Relate in brief - Microsoft vs Java ...

Relate in brief - Microsoft vs Java Microsoft hates Java, as a Java program (portable) isn't tied to any particular operating system. If Java is popular, then programs written

Develop a java application, Modules of software: 1 - Serial RS232 comm p...

Modules of software: 1 - Serial RS232 comm port comunication 2 - NanoHTTPD serving some processed pages 3 - System tray application to indicate status and access configura

Explain testing objects for equality in java, Explain Testing Objects for E...

Explain Testing Objects for Equality in java? , = can only be used with numbers and characters. They cannot be used with Strings, booleans, arrays or other compound types sin

Program that receives two integer inputs from a user, Question 4 Write ...

Question 4 Write a program that receives two integer inputs from a user, an ending value, lastvalue and column, column. The program will display all numbers from 1 to lastvalue

Create a new project in eclipse , Task 1 Create a new project in Eclips...

Task 1 Create a new project in Eclipse called Assignment 1. Within this project create a package called task01. 1/ Download the class Date (you must use this class - no

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