Actually, many good databases are not a collection of tables. That is what
is new about SQL and its relation to the first order predicate calculus.
The new thing about SQL was that there were multiple files and the
normalization rules established via the rules of the first order predicate
You have not clearly identified what your problem is. I am not going to
make a course of study on your posts to see what you are facing. Your
obligation is to clearly set out IN ONE POST what your situation is and what
you need.
On 4/7/06, olonga henry [EMAIL PROTECTED] wrote:
Rick, I am not
Are you talking about different databases on different machines? Is that
where the distributed transactions question comes up? And, would the
databases be different if they were both MySql? I assume so, but I cannot
tell from the way you talk.
On 4/7/06, olonga henry [EMAIL PROTECTED] wrote:
On 4/8/06, Dakota Jack [EMAIL PROTECTED] wrote:
hard to tell what you are doing. So, despite the fact that I don't have a
lot of good feelings about Larry, I support his attitude in this case. Why
don't you forget the smart talk about applications and just tell us in
English what you need to
I might do that, but I really don't have that many frustrations. My life is
pretty much living the dream.
On 4/8/06, Larry Meadors [EMAIL PROTECTED] wrote:
On 4/8/06, Dakota Jack [EMAIL PROTECTED] wrote:
hard to tell what you are doing. So, despite the fact that I don't have
a
lot of
So... how do you do it again?
/server irc.darkmyst.org ?
or ... (I tried in X-Chat)
tia,
.V
Larry Meadors wrote:
Join us on irc.darkmyst.org @ #funkycodemonkey, Dakota. Vent your
frustrations there. It's fun. ;-)
-
To
Yeah, then /join #funkycodemonkey and you are on monkey island.
Larry
On 4/8/06, netsql [EMAIL PROTECTED] wrote:
So... how do you do it again?
/server irc.darkmyst.org ?
or ... (I tried in X-Chat)
tia,
.V
Larry Meadors wrote:
Join us on irc.darkmyst.org @ #funkycodemonkey, Dakota.
I think spring will handle the transactions for you, if you want to do
it yourself, you'll do it in the dao objects, or in case of a
2-phase-commit, start and commit the transaction in the business
manager and extend your dao object to support 2-phase commits
accordingly.
However, a good
That's what I am talking about this is a situation which needs JTA
transaction manager otherwise how would spring handle distributed
transactions. I don't even know what do you mean by good application (at
least a good co-oriented application)
shouldn't use joins or distributed transactions, I
On 4/7/06, olonga henry [EMAIL PROTECTED] wrote:
That's what I am talking about this is a situation which needs JTA
transaction manager otherwise how would spring handle distributed
transactions.
I think (assume) spring has a built-in support for this (declarative
transaction an all).
I
Thanks leon, what you are saying applies well to your sitation, but my
situation is different.
I have to do this first:
ListTicket tickets = TicketManager.getTickets( ticketStatus );
now each ticket record has an employeeId associated with it.
Then I will have to go back to 'Employee' for each
After getting the ticket list, I will have to read the employeeIds first in
memory then make those calls and put 'em in a hashmap so that I can disply
'em properly in the hashmap.
On 4/7/06, olonga henry [EMAIL PROTECTED] wrote:
Thanks leon, what you are saying applies well to your sitation,
olonga henry wrote the following on 4/7/2006 10:21 AM:
After getting the ticket list, I will have to read the employeeIds first in
memory then make those calls and put 'em in a hashmap so that I can disply
'em properly in the hashmap.
I've been following this thread, and it's amazing how
Neither. List of open tickets that can belong to any employee.
It's just happens that I want to display the name of the employee instead of
their Ids. I have been telling this in every email. But you people don't
seem to get this.
On 4/7/06, Rick Reumann [EMAIL PROTECTED] wrote:
olonga
Rick Reumann wrote the following on 4/7/2006 10:50 AM:
I've been following this thread,
... although I wasn't following the thread that closely and missed about
the different databases. I'll just shut up and let smarter people
answer. (I will almost bet though that hibernate isn't helping
That's Right, there are multiple issues here that involves
JTATransactionManager which I can deal with. However what I am asking here
is more of a design pattern type (between dao layer and business
logic/service layer) of question on how do you handle such a scenario where
after gettting list
All you want is a list of tickets by employeeId with the employee name?
You confused us all with the database term, I guess - if I am reading
your question correctly, you mean two tables, not two databases (a
database is a collection of tables).
Keep it simple - use iBATIS (or jdbc) and put the
No, I am using Hibernate 3 and there are a lot of advantages you get from
using a complete ORM solution like this compared to Ibatis.
No, I am forced to use two databases Ticket (MySql) and Employee(AS/400,
legacy info). I have no choice here.
On 4/7/06, Larry Meadors [EMAIL PROTECTED] wrote:
Larry, person who talks about Spring, Hibernate and struts and know about
JTA certainly knows that a database is a collection of tables.
On 4/7/06, olonga henry [EMAIL PROTECTED] wrote:
No, I am using Hibernate 3 and there are a lot of advantages you get from
using a complete ORM solution
Bummer, sucks to be you. Enjoy. :-)
Larry
On 4/7/06, olonga henry [EMAIL PROTECTED] wrote:
No, I am using Hibernate 3 and there are a lot of advantages you get from
using a complete ORM solution like this compared to Ibatis.
No, I am forced to use two databases Ticket (MySql) and
olonga henry wrote the following on 4/7/2006 11:33 AM:
Larry, person who talks about Spring, Hibernate and struts and know about
JTA certainly knows that a database is a collection of tables.
You don't have to be an a**ss when someone is just trying to get
clarification. Good luck getting
Rick, I am not trying to be an a**ss, but what he talked about is the most
basic stuff to any programmer. That's what I was pointing towards. Even you
admitted later that you were replying without getting complete hold of the
subject matter.
... although I wasn't following the thread that closely
Larry Meadors wrote:
select id='getTicketsByEmployeeId' resultclass=java.util.HashMap
Now that is what i miss in Hibernate. Using projection queries, there
should be a way to get Map objects out of the box but unfortunatelly i
have to create them from Object Arrays manually or create my
This is a very specific situation - you have 2 heterogeneous databases, that
can't be joined, right? I'm talking by my own little experience with this
type of thing, it's best to you work with a search engine in a heterogeneous
environment like yours. Something like Lucene is good (both Hibernate
Tamas,
I know JSTL exists, but I know that's not a good thing to do, that's why I
was looking for the options if anybody knew. Again, read my first email
closely ...I was looking for better alternatives which confirm to MVC
principles.
On 4/7/06, Tamas Szabo [EMAIL PROTECTED] wrote:
On 4/7/06, olonga henry [EMAIL PROTECTED] wrote:
That's Right, there are multiple issues here that involves
JTATransactionManager which I can deal with. However what I am asking here
is more of a design pattern type (between dao layer and business
logic/service layer) of question on how do
On 4/8/06, olonga henry [EMAIL PROTECTED] wrote:
Tamas,
I know JSTL exists, but I know that's not a good thing to do, that's why I
was looking for the options if anybody knew. Again, read my first email
closely ...I was looking for better alternatives which confirm to MVC
principles.
I
On 4/7/06, olonga henry [EMAIL PROTECTED] wrote:
Tamas,
I know JSTL exists, but I know that's not a good thing to do, that's why I
was looking for the options if anybody knew. Again, read my first email
closely ...I was looking for better alternatives which confirm to MVC
principles.
The
I still don't get what should be wrong with the 2 DAO, 1
BusinessManager (or two depending on where do you want to federate, in
business or presentation layer) and a struts action to trigger it.
I thought your question was about how to do it best MVC-conform way,
you've got Joe's and mine answer.
Leon, I am using Hibernate with 2 different databases (mysql and
as400): I don't think HibernateTransactionManager can handle
distributed transactions. Even though this discussion should not be
on the struts list, but here it is:
bean id=myDataSource1
#1. Most DB's let you connect to another DB, even to another vendor to
do a join. That be the simplest.
#2. What ever you are doing you need to do in the DAO layer only ( and I
do not see how transcations are helping you on a select).
So I suggest you document a unit test of what you want the
Using Struts-Spring-Hibernate:
I have a situation where I have to fetch a list of records from a table
'Ticket' (in database 1) in which a column is a employeeId so my action
class calls the service layer which in turns calls the DAO layer to get the
Certain Tickets List.
Now, there is another
JSTL SQL calls don't conform to MVC principles in any way at all.
I'd suggest creating a business manager service in Spring which has
access to the two DAOs and having a Struts action call a single
method on that business manager. This one sounds like read only,
but if you have write
to complete to Joes very good suggestion: the business manager returns
service an object/list of objects which are in no way associated with
objects used in dao. The typical name for this kind of object would be
a TicketDTO. The struts action maps each TicketDTO into a TicketBean,
which is the
But what about Transaction demarcation, where does JTA come into play?
On 4/6/06, Leon Rosenberg [EMAIL PROTECTED] wrote:
to complete to Joes very good suggestion: the business manager returns
service an object/list of objects which are in no way associated with
objects used in dao. The
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