x27;factory' object that was used to serve up PersistenceBroker instances, so
it was easy enough for us to set up one or more listeners before we served
up any PersistenceBrokers.
Ron Gallagher
Atlanta, GA
ron dot gallagher at bellsouth dot net
-Original Message-
From: Coup, Robert Muir [m
Hi all,
We're using OJB to interface our application to an online database
(Postgre) as well as an offline database (HSQLDB). I'm in the process of
writing some simple replication code to allow offline updates to be
reconciled when the data is synchronised with the online database.
What I would l
Hi,
For postgresql we just add it to the dbAlias attribute
Eg. Dbalias="//myserver.example.com?ssl" to use a ssl connection
Following the same logic you could use something like
dbAlias="//myserver.example.com?charSet=Big5&prop2=value2&prop3=value3"
Good luck,
Rob :)
> -O
Hi,
Fairly self explanatory
I'm using RC5 - does anyone have any ideas why this might occur (or has
it been fixed - I couldn't find anything in the CVS changelogs)?
Situation:
Interfaces/Inheritance hierarchy:
AbstractEntity
- Group*
- StaffGroup*
- StudentGroup*
- AbstractPer
Hi all,
Situation:
We use a single data/db model which can either be an online network
database (PGSql) or an offline local one (HSQLDB). At startup time, the
user chooses which to use, and we just apply a different
connection-descriptor. That all works great.
Now one feature requires a connecti
Any chance you could post a summary of what you learnt?
Thanks,
Rob :)
> -Original Message-
> From: Weaver, Scott [mailto:[EMAIL PROTECTED]
> Sent: Thursday, 4 March 2004 11:48 a.m.
> To: 'OJB Users List'
> Subject: RE: [OTM] bi-directional 1:n not working
>
> Hi Oleg,
>
> I had a lo
I'm having a great day, so ignore the previous post. :P
Is appId field in the PortletDefinitionImpl populated when you retrieve
it (as opposed to the app reference)?
Rob :)
> -Original Message-
> From: Weaver, Scott [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, 2 March 2004 10:49 a.m.
>
Hi,
Could you send the relevant parts of your repository.xml?
Rob :)
> -Original Message-
> From: Weaver, Scott [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, 2 March 2004 10:49 a.m.
> To: 'OJB Users List'
> Subject: [OTM] bi-directional 1:n not working
>
>
>
> I have a PortletApplicatio
Hi,
There can only be one ODMG transaction open per thread.
Thanks,
Rob :)
> -Original Message-
> From: Ziv Yankowitz [mailto:[EMAIL PROTECTED]
> Sent: Tuesday, 10 February 2004 5:39 a.m.
> To: OJB (E-mail)
> Subject: Transaction Question.
>
>
> Folks,
>
> Is Nested Transaction supp
erialization of a dynamic proxy object
>
>
> Try this
> It should work :)
>
> import org.apache.ojb.broker.util.ProxyHelper;
>
>
> ...
>
> ProxyHelper.getRealObject(iter.next());
>
>
> B.R
>
> T.H
>
>
> -Original Message
Hi all,
I have searched through the archives and can't seem to find any answer.
How can I force a proxy to materialize its object, or to replace the
proxy object witht the real object?
I have a collection of Group objects within a Paper object. Group's are
proxied dynamically (group, staffgroup),
Reading your question a bit more.
Do you actually want to customize your queries for specific
collection-descriptors (which is what QueryCustomizer is for), or do you
just want to perform complex queries?
If its the second option, complex queries are relatively straightforward
once you get the ha
Hi,
It's not too difficult - basically your querycustomizer gets called with
what it thinks is the query to run based on the collection-descriptor,
etc. Then you can add/adjust/replace the query it is going to perform
with something that suits better.
Very simple example (for this collection, get
Hi,
Minor assumption/clarification - you want to find all activities with no
schedules (where activities is on the 1 side and schedules are on the N
side).
I'm struggling with something similar (only its nasty m:n) so you're in
luck:
crit.addIsNull("schedules.uid");// pk
Hi all,
I have a complicated situation which I have run into using proxies and
interfaces...
Classes:
Interface Group
Interface StudentGroup extends Group
Interface StaffGroup extends Group
Class GroupImpl implements Group
Class StudentGroupImpl ex
use them. It looks
> like you can specify different connection pooling
> implementations though so what you want is probably to set
> the following in OJB.properties:
>
> ConnectionFactoryClass=org.apache.ojb.broker.accesslayer.Conne
> ctionFactoryNotPooledImpl
>
> -
Hi All,
We're using a hsqldb database for part of our application, and need to
package the database files up into a zip archive before exiting. Problem
is, OJB doesn't seem to be closing the database connection so the files
are still locked and we can't delete them once they are in the Zip file.
> As you suggested, this is the old int/Integer problem. In OJB
> the prefered way is to avoid primitives datatypes (as int,
> boolean) and use only Object datatypes (as Integer, Boolean).
>
> I think the problem can be solved at the docs. If not then
> how we can test a int to null in Java? ;
Hi,
I think I found a minor bug in the optimistic locking (OL)
code/documentation
If you initialise an int field to use OL (locking="true") then updates
will fail if the field is null, either silently or with a
LockNotGrantedException.
public class MyClass {
private Integer id;
p
Hi,
I think I found a minor bug in the optimistic locking (OL)
code/documentation
If you initialise an int field to use OL (locking="true") then updates
will fail if the field is null, either silently or with a
LockNotGrantedException.
public class MyClass {
private Integer id;
p
Hi All,
I'm having some fun with Optimistic locking. Specifically, I'm trying to
delete a series of objects contained in a collection, and getting the
following error.
org.odmg.LockNotGrantedException: Object has been modified by someone
else
at org.apache.ojb.odmg.ObjectEnvelopeTable.com
updated so their indexes are stored.
As always, suggestions are welcome.
Thanks,
Rob :)
> -Original Message-
> From: Coup, Robert Muir [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, 14 January 2004 12:09 p.m.
> To: [EMAIL PROTECTED]
> Subject: Ordered Collections, Lists, D
the query generated by ojb.
>
> hth
> jakob
>
> Coup, Robert Muir wrote:
>
> > Hi All,
> >
> > What I have :
> > Root Object RO has:
> > - a collection of CO objects specified using
>
> >
> > Child Object CO has:
> > - a
Hi Jakob,
> you can solve this problem by using a QueryCustomizer to add
> additional criteria
> to the query generated by ojb.
I found it! It's only mentioned in the O/R mapping tutorial but not is
missing completely from the repository documentation, so I had missed
it.
I think it would be h
As I understand it OQL queries always hit the database but the objects
can be resolved from the cache though. If you use the PB API for
accessing objects (you can do this from ODMG) then the cache is accessed
much more.
Good Luck,
Rob :)
-Original Message-
From: Ronen Yaari [mailto:[EMAI
Hi All,
What I have :
Root Object RO has:
- a collection of CO objects specified using
Child Object CO has:
- a collection of CO objects specified using
- a reference to a parent CO (null if the object has no CO parent)
- a reference to the RO
Example...
RO
+ CO
+ CO
+ CO
Hi all,
What is the best way of storing an ordered list without using Dlist
which requires additional tables & SQL lookups?
OrderBy works great if the positioning has some underlying field (eg.
Object id, name) but if the only thing specifying the position is the
list index then it doesn't work
Hi,
I really strongly suggest you make a module using an ANT build file.
There are lots of docs on the netbeans site and templates in the
OpenAPIs Support module. Otherwise it will just get messier and messier
every time you try to do something.
Once you have a module, use nice netbeans-style pat
Hi,
> No Success! :( I've mounted a directory c:\work\test and
> OJB.properties is in it. What should I type after nz/ ?
Ah. By nz/... I meant your path to the OJB properties file relative to
the mount point
It needs to be in a subfolder under the mountpoint otherwise NB won't
resolve it.
> You need the ojb libraries in your classpath. This either means -
> - make a module, declare dependencies and install the libs
> in netbeans-dir/modules/ext
> - do it the nasty way and install in netbeans-dir/lib/ext
>
Or alternatively, the pinnacle of nastiness, build a jar file with all
t
Hello,
Sorry about the late reply.
We're using Netbeans to develop an app which also uses OJB, so I've been
there and done this :)
Before initialisation (ie. Any ojb-calls )
...
System.setProperty("OJB.Properties",
"nz/ac/auckland/markit/ojb/OJB.properties")
...
ie. Using the netbeans-style resou
Hi,
Are you creating Dlist's within a transaction and then not persisting
them? I ran into this issue amd didn't really find a satisfactory
answer...
I would really like to use a general list class (with ordering!) that
can be made persistent but doesn't need the overhead/space of re-storing
every
Hi Fabiano,
Try JDBC-TYPE='TIMESTAMP' - and try and use java.sql.Date instead of java.util.Date...
I have run into problems before with java.util.Date but YMMV.
Good Luck,
Rob :)
> -Original Message-
> From: Fabiano Fernandes de Souza [mailto:[EMAIL PROTECTED]
> Sent: Thursday, 8 Janu
Hi Claudio
OJB's autoincrement is completely separate from the database/table
autoincrement
Good luck,
Rob :)
> -Original Message-
> From: Claudio Romano [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, 7 January 2004 11:53 p.m.
> To: OJB Users List; [EMAIL PROTECTED]
> Subject: RE: Sequen
One more important thing.
Make sure your primary keys are unique across Documents _and_ Downloads.
Ie. If there is document #10 there should never be download #10
This is because they are in the same extent. If you retrieve a
collection of SupportItemI's then they need to have unique IDs, or a Ba
> The scenario is this: a PalModel should have a collection of
> SupportItemsI and a
> Keyword should have a collection of support items.
> Keyword doesn't relate to pal_model.
Okay. So what was in my last email should work :)
> Something else just came to my mind: a category should also
> hav
> ... and now for something completely different:
>
> do i even have define foreign key constraints in my
> database??? I'm having the
> impression that OJB is handling all the joins. Is it enough
> to have some loose
> tables in my DB ???
Well, it's up to you.
OJB can and will do it anyway
s ...
... Field Descriptors ...
-Original Message-
From: Patrick Scheuerer [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 6 January 2004 11:38 a.m.
To: OJB Users List
Subject: Re: How to combine two non-decomposed m:n
Hi,
> This sounds interesting. Just let me make sure I got it right: I have
to create a new table t_download_supportitemI which has a m:n mappings
to
> t_download and and one to t_document (pretty much a replacement for
t_pal_model)
Well, I would call it t_pal_model_supportitemI, and its a re
,489 DEBUG
[org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy] Resized cache
for bean ConferenceAbstractStatus: old capacity = 100, new capacity
= 50
Brian Sam-Bodden wrote:
> Coup, Robert Muir wrote:
>
>> If you use hsqldb in client-server mode you can set it up to log all
>> the sql queries
Hi,
Did you see my response to your other post? Please reply to the list.
Cheers,
Rob :)
-Original Message-
From: Patrick Scheuerer [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 6 January 2004 10:17 a.m.
To: OJB Users List
Subject: How to combine two non-decomposed m:n mappings in one
colle
Hi,
AFAIK, fields of TIMESTAMP type in mysql automatically fill themselves
with the current time/date if you INSERT or UPDATE them to null
values... Maybe you should use a mysql DATETIME field which is
essentially the same data type, just without the automatic cleverness?
Rob :)
-Original Me
ary 2004 11:33 a.m.
To: [EMAIL PROTECTED]
Subject: RE: Getting the Id in insertion time.
Can I ?
How I am stupped! hehehe
:-)
Thank you.
Fabiano.
Em Ter, 2004-01-06 às 04:48, Coup, Robert Muir escreveu:
> Can't you just look at the primary key field (eg myObject.oid) of the
> object to r
If you use hsqldb in client-server mode you can set it up to log all the
sql queries (see Advanced Topics in the HSQLDB docs). Or configure p6spy
to do the same thing on the OJB side... This might give you some ideas
about what it is trying to do...
I assume that your db connection in the reposito
Can't you just look at the primary key field (eg myObject.oid) of the object to
retrieve the id value? OJB/ODMG will automatically set this value when the object is
persisted/retrieved...
Rob :)
-Original Message-
From: Fabiano Fernandes de Souza [mailto:[EMAIL PROTECTED]
Sent: Tuesday
Hi Patrick.
Is the field doc_id in download_pal_model actually meant to be model_id?
Otherwise I am a touch confused :)
Also, I assume you've checked out the advanced O/R mapping stuff at
http://db.apache.org/ojb/tutorial3.html - if not, do it now!
Idea #1:
For download -> model
... Field D
I assume you mean repository.xml
If so:
This uses Postgre's sequences to generate keys for different extents. See the tutorial
docs and the sequence manager docs for more information.
Thanks,
Rob :)
-Original Message-
From: Fabiano Fernand
Hi all,
What is the best way of storing an ordered list without using Dlist
which requires additional tables & SQL lookups?
OrderBy works great if the positioning has some underlying field (eg.
Object id, name) but if the only thing specifying the position is the
list index then it doesn't work t
Of course, this is OJB :)
OJB.properties location & name can be specified through a call to
System.setProperty("OJB.properties", ) before anything is done.
In the OJB.properties file you can specify the location and name of the
repository.xml file.
Have fun,
Rob :)
-Original Message-
F
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