ejb3 exception

[nskarthik_k]

hi

JBOSS6 AS,JDK6,LINUX

Can some body provide me Example snippets on How to Customise Exceptions usage in EJB3

Exceptions thrown on Ejb3 in J2ee container should be avaliable on client process

ex...

//ejb3' server

try{

}catch(SQLException sqx){

    throws new EjbException(1001)

}

//ejb3 client (web / standalone /.....)

String Error = xyz XXXXXXX("????")  // this should fetch the 1001

How to achieve the same in ejb3 ????

with regards

Karthik

[wdfink]

If you declare a checked Exception it will be provided to the client.

RuntimeExceptions might be covered.

Is that what you meant?

[nskarthik_k]

Hi

My Primary requirement isto display appropriate message in Unicode languages for a single installation...this needs to be displayed Error / Exception Gentel messages raised on account of exceptions...

To achieve the same i have  to customised the my own Exception class called  "EjbException.java" which extends Exception calss

With this process I need the  number raised due to  Exception to return back  to the Clinet . A   Unique number for  every exception's type is  used as key value pair  ..

The number is refrence to a Gentel Error message to the  client User in appropriate Unicoded Fomat

English Users                                       

1001 = Data Not Provided ( english )   

or    

Spanish User

1001 = xxxxxx( Spanish )

//Ejb's

try{

}catch(SQLException sqx){

    throws new EjbException(1001)

}

//ejb3 client (web / standalone /.....)

int Error = xyz XXXXXXX("????")  // this should fetch the 1001

String message  =  xyz.getMessage(Error);  // this should fetch the appropriate message and display

with regards

karthik

[wdfink]

I use standard Java ResourceBundle for this, it support what you need.

The Exception include a key (in your case the number) and the native message.

The getMessage() or getLocalizedMessage() method checks the ResourceBundle and provide the localized message or the native one if nothing was found.