Re: Default exception handler

From:
kleiton.contato@gmail.com
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 26 Feb 2008 12:39:17 -0800 (PST)
Message-ID:
<ce85f47b-537f-4b20-86de-8b5924ca28ab@d5g2000hsc.googlegroups.com>
Hey.. oyou should create another class for example:

public class IntegrationException extends Exception {

    private Throwable rootCause;

    public IntegrationException() {
        super();
    }

    public IntegrationException(String message) {
        super(message);
    }

    public IntegrationException(String message, Throwable cause) {
        super(message, cause);
        rootCause = cause;
    }

    public IntegrationException(Throwable cause) {
        super(cause);
        rootCause = cause;
    }

    public Throwable getRootCause() {
        return rootCause;
    }

    public void setRootCause(Throwable throwable) {
        rootCause = throwable;
    }

}

when you find a block with try and catch you should change every
exception to IntegrationException .

like this:

public void doSomeThing()throws IntegrationException {
    try{
        // cod
       }catch(Exception e){ // whatever exceptions
          throw new IntegrationException(e);
       }
}

with this way you throw every exception to IntegrationException.

bye

On 26 fev, 17:03, dgront <dgr...@chem.uw.edu.pl> wrote:

Sorry, I accidentally submitted before finishing.

So I use instanceof to find out what kind of exception happened. This
looks tedious and I am looking for a more elegant solution. Do you
have any ideas?

The best what I found is to extend RuntimeException (I handle only
these by my default handler) and to add an enum field to each
exception. Then I will be able to dispatch exceptions within a switch
clause.

Can you find a better idea? Or maybe instanceof is good enough, since
exceptions appear very rarely.

Dominik

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