First off, I'd like to seriously congratulate Mikalai Zaikin for coming up with a really well organized and comprehensive guide. Kudos!!
There were a couple of things, though, that bothered me, like:
Chapter 12. Exceptions
The first line says
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.
Shouldn't this also include java.lang.RuntimeException?
Chapter 6. Component Contract for Container-Managed Persistence (CMP)
Here you mentioned that
...the container-managed persistent (CMP) fields and container-managed relationship (CMR) fields...are accessed through get and set accessor methods.
If I remember the JavaBeans Framework correctly, the get methods were called accessors and the set methods were called mutators. That's just a cosmetic issue, but we wouldn't want to confuse any newbies!
Feel free to get back to me with any comments/queries you may have. [ January 10, 2005: Message edited by: saager mhatre ]
>># Chapter 12. Exceptions >>The first line says >> >> quote: 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. >> >>Shouldn't this also include java.lang.RuntimeException?
No. You usually don't define RuntimeException (or one of its subclasses) in the "throws" clause of a method. So I suppose it's not included.
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posted 15 years ago
You usually don't define RuntimeException (or one of its subclasses) in the "throws" clause of a method
The EJB Spec Chapter 18.1.1 Application Exceptions says
An application exception is an exception defined in the throws clause of a method of an enterprise bean�s home, component, message listener, or web service endpoint interface, other than the java.rmi.RemoteException.
The same section also says
An application exception class must be a subclass (direct or indirect) of java.lang.Exception. An application exception class must not be defined as a subclass of the java.lang.RuntimeException or of the java.rmi.RemoteException.
So by definition, java.lang.RemoteException and its subcalsses would not be Application Exceptions. But in the limited context of the Client View (by declaration), the java.lang.RuntimeException clause has been ignored as unchecked exceptions need not be declared in the throws clause.
In a broader perspective, in several places the spec refers to Application Exceptions and non-Application Exceptions. Would non-Application Exceptions always imply System Exceptions or is there any gray area here. [ January 11, 2005: Message edited by: saager mhatre ]
Doody calls. I would really rather that it didn't. Comfort me wise and sterile tiny ad: