Concurrnet access of entity object

[SAMINATHAN]

hi    we are developing a standard alone application with EJB in the middle tier and Swing in the front end.And we are using completely BMP entity for accessing  our data.   The case is like this         I have client A and client B   my client A calls my ejbLoad()  and gets all the record 1 in the form and started modifying and in the mean time my client B also calls the ejbLoad() for the record 1 and started modifying the record.   I don't have  any issues when the first client or in that matter who ever updates  first .   but when the second client tries to update after the first one , what will happen to my data integrity?   and what about ACID properties ?     Can some one kindly let me know whether these kind of issues will be taken care by container or not?   Thanks in advance   Saminathan.