posted 18 years ago
An application exception is an exception defined in the throws clause of a method of the enterprise Bean�s home and component interfaces, other than the java.rmi.RemoteException.
An application exception thrown by an enterprise bean instance should be reported to the client precisely (i.e., the client gets the same exception).
� An application exception thrown by an enterprise bean instance should not automatically rollback a client�s transaction. The client should typically be given a chance to recover a transaction
from an application exception.
Enterprise bean business methods use application exceptions to inform the client of abnormal application-
level conditions, such as unacceptable values of the input arguments to a business method. A client
can typically recover from an application exception. Application exceptions are not intended for reporting
system-level problems.
For example, the Account enterprise bean may throw an application exception to report that a debit
operation cannot be performed because of an insufficient balance. The Account bean should not use an
application exception to report, for example, the failure to obtain a database connection.