Would it be possible or at least usefull if the SQL objects in that example
be used for the Form Beans
and for the forms (using XForms). That would really cut don't the amount of
work to a minimum
Mike
|---------+---------------------------->
| | Ted Husted |
| | <[EMAIL PROTECTED]|
| | g> |
| | |
| | 11/10/2003 11:13 |
| | AM |
| | Please respond to|
| | "Struts Users |
| | Mailing List" |
|---------+---------------------------->
>------------------------------------------------------------------------------------------------------------------------------|
|
|
| To: Struts Users Mailing List <[EMAIL PROTECTED]>
|
| cc:
|
| Subject: Re: Keeping Actions clean - separating actions from business mode
l from persistence |
>------------------------------------------------------------------------------------------------------------------------------|
Mahesh Joshi wrote:
> I have always wondered where is the best place to do connection
management
> with the dataStore.
> Should the business Logic do connectionManagement (e.g. opening a
connection
> (via a connection pool or otherwise)) or should that be the
responsibility
> of the persistence layer. Doing it in the latter(PersistenceLayer) frees
up
> the BusinessLayer of connection Mgt code.
> If you are implementing connectionpool, the overhead is the time to
return
> the connection to the pool and get it back.
The iBATIS DAO splits the difference and makes transaction management
part of the logical DAO API. So you can specify different connection
mechanisms at instantiation, and the implementating code does not need
to know the details. The DAO implementation can just call high-level
methods like startTransaction, commitTransaction, or rollbackTrnasction.
This strategy limits what the implementaton needs to know about the
connection management, but still lets the business logic determine what
constitutes a transaction (which is often a business decision).
-Ted.
--
Ted Husted,
Junit in Action - <http://www.manning.com/massol/>,
Struts in Action - <http://husted.com/struts/book.html>,
JSP Site Design - <http://www.amazon.com/exec/obidos/ISBN=1861005512>.
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