How to prevent a user from deleting a record while another is edi ting it

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How to prevent a user from deleting a record while another is edi ting it

How to prevent a user from deleting a record while another is edi ting it

2004-09-28 - By Manish Malhotra

Back

Reply: 1 2 3 4 5 6 7 8 9 10 >>

Hi,
Another is editing means somebody is using the modify / update page.
SO, u can insert a timestamp in the table when ever u use this table in
modify mode.
Whenever u select the data frm this table get this timestamp also. Then when
u need to update the DB only if the selected and the current timestamp in
that column is equal.

Otherwise what u r doing is updating the data which is not the correct
version which u wanna to be.

This is called Version Control pattern.

Regards,
Manish

-- --Original Message-- --
From: An interest list for Sun Java Center J2EE Pattern Catalog
[mailto:J2EEPATTERNS-INTEREST@(protected)]On Behalf Of Gupta, Rajan
Sent: Sunday, September 05, 2004 9:49 AM
To: J2EEPATTERNS-INTEREST@(protected)
Subject: How to prevent a user from deleting a record while another is
edi ting it

I am looking for a pattern for CMP based persistence model under EJB 2.0
which will prevent a user to delete a record while another is editing it.

Thanks in advance,
Rajan

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