I am failed, Please help

Hi

I am failed. Here is my result.

The maximum possible score is 400; the minimum to pass is 320.
General Considerations (maximum = 100):
100 Documentation (maximum = 70): 70
O-O Design (maximum = 30): 30
GUI (maximum = 40): 24
Locking (maximum = 80): 0
Data store (maximum = 40): 40
Network server (maximum = 40): 40

Major point loss for record-locking mechanism, which is not according to spec. Your locking code does not block when trying to lock a locked record.
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So before I submitted my assignment, I tested my locking mechanism, it did work. I don know where is wrong in my locking mechanism.

Could Andrew or anyone help me to find out where is the problem, so I want resubmit my assignment again. Can I upload my Data class here?

Thanks for your help.

Hello bin zao,

Your locking code does not block when trying to lock a locked record

Here is what they mean :
Client A locks a Record 1. Client B tries to lock record 1 (The same record
locked by Client A),Client B should wait till record 1 is unlocked.To be more specific, the Thread of Client B should wait till Record 1 is unlocked.This should be done by using the wait and notify mechanism.
Hope that his helps.
[ February 26, 2007: Message edited by: Khaled Mahmoud ]

Can I upload my Data class here?

No - but you can post your locking method (repeat: only the locking method).

Hi Bartender and Ranch hand

Thanks for your suggestions, I know now where is wrong in my code. I did following mistake:

A Client locked record 1.
B Client try to lock record 1.
B Client can not lock record 1 and get the Message: "record 1 is already used by other client", then B Client does not wait until A Client unlocks the record 1 and B Client finishes the operation. This is the mistake.

So, I will improve my assignment and post my new "lock", "islock" and "unlock" methods here before I resubmit it.

If you could check my new locking mechanism, it would be grateful.

Thanks

The rules of the forum (see FAQ) is that you can post only one locking method. So I suggest you post only your lock method.