You are right:
ejbCreate() -> SQL INSERT
ejbRemove() -> SQL DELETE
But you are missing the finders:
ejbFind*() -> SQL SELECT
If there already is a "Jones" you go get the Jones:
e.g. if the primary key is a string that represents the person:
Customer cust = custHome.findByPrimaryKey("Bob Jones");
Dion
> -----Original Message-----
> From: A mailing list for Enterprise JavaBeans development
> [mailto:[EMAIL PROTECTED]]On Behalf Of Dane Jones
> Sent: Saturday, April 14, 2001 9:30 PM
> To: [EMAIL PROTECTED]
> Subject: Basic Theory Question
>
>
> Hi
>
> I'm pretty new to EJB (as this posting will prove) but I have
> read up a bit
> about them and I think I understand most of the basic concepts.
>
> I'm having a problem understanding a bit of the logic with regard to
> Entity Beans, specifically the ejbCreate() and the ejbRemove() methods.
>
> Sorry if this goes on a bit, but I want to say how I see it, and I'd
> really appreciate it if someone could at least point me to where I can
> find a resource that will clear up my misconceptions.
>
> An Entity Bean will usually represent a business object (like a
> customer, an account, an order etc) that is usually stored in some
> persistent storage location, such as a database. If that's the case, and
> this is where I'm getting confused, if the entity already exists (say
> customer "Jones"), why would you INSERT another "Jones" into the
> database in the ejbCreate() method, and why would you DELETE customer
> "Jones" in the ejbRemove() method?
>
> This is what I understand is happening in both of these methods. The
> ejbRemove() DELETEs the underlying data not the bean itself, correct?
>
> Please forgive if this is a stupid question, but I can't seem to find an
> example anywhere that *doesn't* perform both these operations within the
> respective methods I've mentioned. I just can't get my head
> around why this
> would be so. I'm sure I'm missing something incredibly simple, but I would
> very much appreciate some elucidation on this.
>
> Any help or pointers very much appreciated
>
> Cheers
>
> DJ
> _________________________________________________________________________
> Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
>
> ==================================================================
> =========
> To unsubscribe, send email to [EMAIL PROTECTED] and include
> in the body
> of the message "signoff EJB-INTEREST". For general help, send email to
> [EMAIL PROTECTED] and include in the body of the message "help".
>
===========================================================================
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff EJB-INTEREST". For general help, send email to
[EMAIL PROTECTED] and include in the body of the message "help".
