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

Create a generic class with a type parameter, 1. The purpose of this proble...

1. The purpose of this problem is to practice using generics.  Create a generic class with a type parameter that simulates drawing an item at random out of a box. For exampl

Add wordpress color picker to plug-in text field, Add WordPress color picke...

Add WordPress color picker to plug-in text field Project Description: I have a simple plug-in that needs the built-in Word Press color picker added to one of the text input f

Explain exception classes, OOPS with Java 1. Explain any five buzz word...

OOPS with Java 1. Explain any five buzz words in Java. 2. Explain exception classes and also explain common exceptions in java. 3. Explain primitive and abstract data typ

USES OF JAVA PROGRAMMING, WHY WE USE JAVA IN PROGRAMMING INSTEAD OF OTHER P...

WHY WE USE JAVA IN PROGRAMMING INSTEAD OF OTHER PROGRAMMING LANGUAGE

Describe the ? operator in java langauge, Describe The ? operator in Java l...

Describe The ? operator in Java langauge? The conditional operator just works for assigning a value to a variable, using a value within a method invocation, or in a few other w

Constructors, how do I use constructors in java and how do I apply them

how do I use constructors in java and how do I apply them

What is a target , A target is the class that is being advised. The class ...

A target is the class that is being advised. The class can be a third party class or your own class to which you require to add your own custom behavior. By using the concepts of A

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