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

Explain the order of evaluation of logic operators, Explain the Order of Ev...

Explain the Order of Evaluation of Logic Operators ? When Java sees a && operator or a ||, the expression on the left side of the operator is evaluated first. For instance, con

What is aop alliance, AOP Alliance is an open-source project whose goal is ...

AOP Alliance is an open-source project whose goal is to promote adoption of AOP and interoperability between different AOP implementations by describing a common set of interfaces

I need a dcs source code and jar, I need a DCS (Source code and JAR) to pro...

I need a DCS (Source code and JAR) to process packets from a cheap chinese GPS TK110, the unit is already communicating with the server but is not parsing. So I need someone with e

Board Colourling, write a program to find the minimum no of colors to fill ...

write a program to find the minimum no of colors to fill a board where some of the elements of different color are already placed.

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

Garbage collection in java, The Java programming language is object-oriente...

The Java programming language is object-oriented and includes automatic garbage collection. Garbage collection is the process of reclaiming memory taken up by unreferenced objects.

What is the use of mapmessage, A MapMessage carries name-value pair as its ...

A MapMessage carries name-value pair as its payload. Therefore its payload is same to the java.util.Properties object of Java. The values can be Java primitives or their wrappers

Compiler design limit the loops, Problem : Compiler Design - Limit the loop...

Problem : Compiler Design - Limit the loops Rajni is a newbie to the programming and while learning the programming language he came to know the following rules: ???• Each program

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