Thank you, Jonathan,
I did "reqiures new" for ejbLoad(),
and wrote
this.value = value+1;
inside ejbLoad(), [which was in getValue() earlier.]
I think that is what u meant, but even by this i get same value, clint
accessing at same time.
Suresh
----- Original Message -----
From: "Jonathan Baker" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, November 29, 2000 2:10 PM
Subject: Re: unique int value generation thru' CMP entity Bean
> Suresh:
>
> I think this will work for you:
>
> Try setting up the Entity bean so that the ejbLoad() method first runs an
> update statement to increment the counter by one, and then select the
value
> into the entity bean (and the EJBStore method should do nothing). Then
set
> the transaction attribute for this bean to 'requires new'.
>
> Now, when the entity is activated it will call ejbLoad() from a new
> transaction. The update will get an exclusive lock on the database table,
> which means no one else can update or read the data at the same time.
Then,
> the select statement will read the value. Once the method call to get the
> value returns, the transaction will be completed and the database locks
> released.
>
> That should get you a unique value for every call, even if you have
multiple
> containers.
>
>
>
> Jonathan Baker
> Internet Applications Division
> Sybase, Inc.
>
>
> Suresh Ajja wrote:
> >
> > I m having a counter Ejb entity, CMP which has one field "value"- int.
> > I have a getValue() remote method which increments the value=value+1,
and
> > returns it.
> > I am callingthe ejb thru' servlet, and i call the getValue(), but when I
am
> > running, two clients at the SAME TIME, it gives me same count, which i
don't
> > want.
> > How can i get unique values.
> > need help........somebody pls..........
> >
> >
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>
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