Hi!
I have some business runtime exceptions that I want to be automatically
catched and its message rendered in the same page that threw it instead of
redirecting to an error page.
Is there a safe way to do that?
These 'business exceptions' are usually thrown in some specific methods like
onSubmit and onClick. Extending the specific components is not an option for
me.
I did something I think it dangerous. Something like:
public Page onRuntimeException(Page page, RuntimeException e) {
Throwable current = e;
while (current != null && !(current instanceof MyBusinessException)) {
current = current.getCause();
}
if (current != null) {
// MyBusinessException detected
page.error("Error: " + current.getMessage());
return page;
} else {
return super.onRuntimeException(page, e);
}
}
When as exception is thrown, all the execution flow breaks, making some
things not happen. The question is: is the above code safe assuming that
MyException could be thrown only by methods like onSubmit and onClick?
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