Hi Shane,
Shane Mingins wrote:
Hi
I just wondered if there are any good resources out there for OJB and
specifically the ODMG API?
I see that there is one book that includes it Professional Struts
Applications: Building Web Sites with Struts, Object Relational Bridge,
Lucene, and Velocity.
Hi again Shane
Shane Mingins wrote:
Hi Thomas
These are probably going to be dumb questions but I cannot find answers
anywhere. [The mail list archive is so frustrating to use.]
1. How do I lock 'b' elements from a collection using the ODMG API?
tx.lock(b, Transaction.WRITE);
2. Can I double
hi,
I've looked at using the OJB-XDoclet project to do the same type of
thing, but it seems to have some bugs as well. Plus, I prefer to do my
modeling from the DB, and just extend those base classes.
yep, we also have to work with reverse engineering, we are using torque because it
gives
Hi!
I declare a class-descriptor of A. Its proxy property is set dynamic. I try to
load it from DB by oql command. The return collection is DList(because the
OqlCollectionClass=org.apache.ojb.odmg.collections.DListImpl is set in
OJB.properties), but the elements in DList are proxy objects
Thomas Mahler wrote:
Hi Shane,
Shane Mingins wrote:
Hi
I just wondered if there are any good resources out there for OJB and
specifically the ODMG API?
I see that there is one book that includes it Professional Struts
Applications: Building Web Sites with Struts, Object Relational Bridge,
Hi,
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 12, 2003 8:51 AM
To: OJB Users List
Subject: Problem of dynamic proxy?
Hi!
I declare a class-descriptor of A. Its proxy property is
set dynamic. I try to load it from DB by oql
Hello,
I'm trying to use the DMapImpl class to store java Map objects, but this
exception is thrown :
org.apache.ojb.broker.metadata.ClassNotPersistenceCapableException: Could not
init Identity for given object class java.lang.String: java.lang.String not
found in OJB Repository
Does this mean
Sorry, it's the key of the map which can't be a java type.
So what is the solution ? I can't find nothing about DMapImpl in the tutorial.
Selon [EMAIL PROTECTED] [EMAIL PROTECTED]:
Hello,
I'm trying to use the DMapImpl class to store java Map objects, but this
exception is thrown :
Hi Thomas
Thanks for all your help and answers.
I found a copy of the Professional Struts Applications: Building Web Sites
with Struts, Object Relational Bridge, Lucene, and Velocity (which is
pretty amazing in New Zealand *grin*).
I had a browse of the OJB section and they use the
Hi Shivaken,
There is no way to do this with QueryByCriteria queries.
You could use QueryBySQL to use use your own handcoded SQL.
an additional option would be to implement your own SqlGenerator
Implementation that use your special SQL code.
But this will be more work.
cheers,
thomas
Hi Alexander,
I don't now if this will solve your problem,
but in current CVS version Identity class
(and some dependend classes) changed to
populate both
object real class = null;
pkvalues = 10;
object class = IBaseInterface.
objectRealClass and objectClass
(means topLevelClass).
Give
This is weird...
Suddenly (or so it seems...), OJB wants all my collections to be
RemovalAwareCollections.
When I retrieve an object with a Collection from the database, OJB
seems to instantiate the collection to a RemovalAwareCollection before
it is added to the object. So if the field in
Long time no post but we found a strange behaviour in our app which
otherwise has been running fine.
it involves the auto-delete
we use
Broker.deleteByQuery(aQuery); //where the Query is just a 1 Primary Key from
an object.
This however doesn't seem to delete any linked objects (ie per defined
There is one section on OJB in the model chapter but it is short and fairly
limited. The OJB website is a better resource for OJB. The book only briefly
mentions ODMG.
Eric
-Original Message-
From: Shane Mingins [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 11, 2003 10:34 PM
To:
Hi Thomas,
I roughly have the same problems, but slightly different senario. The
child object is actually already in the database. I want to insert the
parent object into the database, whereas update some field in the child
object (The child record actually is there in database). How should I do
Still no answers...???
Eric Northam [EMAIL PROTECTED] writes:
Has anyone come up with a solution for this? I'm having the same problem. I
haven't tested whether it works with the PersistenceBroker though.
Eric
Subject: ODMG api with m:n mapping.
From: Wara Songkran paan130 at
Nope and I was able to duplicate the problem under Hypersonic albeit with a
slightly different error message.
Eric
-Original Message-
From: Henrik Berg [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 12, 2003 9:49 AM
To: OJB Users List
Subject: Re: ODMG api with m:n mapping.
Still no
I have tried using Netscape 7 and IE 5.5. All I get in the body of the
message is $msgHeaders. I must be doing something foolish here no???
Peter
I think I get RemovalAwareCollection working with proxied classes.
The method afterStore in CollectionProxy should not be:
public void afterStore(PersistenceBroker broker) throws
PersistenceBrokerException
{
Collection c = getData();
if( c instanceof ManageableCollection )
Hi!
I got the same problem, and solved it by simply removing
auto-retrieve=true
auto-update=true
from the collection-descriptor...!
Henrik
Eric Northam [EMAIL PROTECTED] writes:
Sure thing,
The following causes a BatchUpdateException:
Invalid argument value, message
I had this kind of error when I wrong defined the keys...
M:N mappings work for me, even OJB PB Api ODMG (besides actually I don't
work with ODMG).
Edson Richter
- Original Message -
From: Henrik Berg [EMAIL PROTECTED]
To: OJB Users List [EMAIL PROTECTED]
Sent: Thursday, June 12,
Thanks a lot. That solved the problem. After consulting the documentation I
found that the auto-update is unsupported under ODMG. It would be nice for
others if this was mentioned on the Advanced O/R web page. Here's an
excerpt:
The auto-update attribute specifies whether OJB automatically
Are there *.zip of the *.1.0.rc3.* instead of the *.tgz ?
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Hi all,
We're starting to use OJB to replace hand coded SQL in some of our objects
now. Due to a flaky architecture, we have a 'User' object that maps to
several tables. Here is the schema:
BV_USER
USER_ID INTEGER
ACCOUNT_ID INTEGER
USER_ALIAS
Mahler Thomas [EMAIL PROTECTED] writes:
Now what I need, is some Collection-class that removes the removed
objects, but lets them stay in the database, just sets their foreign
keys to 0/null or something, so that they don't reappear in the
collection next time it loads from the database.
Of course, I don't use auto-update/auto-delete (that was motivation I got to
PB Api).
(shamed)
Edson Richter
- Original Message -
From: Edson Carlos Ericksson Richter [EMAIL PROTECTED]
To: OJB Users List [EMAIL PROTECTED]
Sent: Thursday, June 12, 2003 11:36 AM
Subject: Re:
Thanks Thomas!
Thomas Mahler wrote:
Hi Tina,
Tina Tsui wrote:
Hello,
I've ran junit against Hypersonic successfully, but when I ran it
against PostgreSQL I get some failures.
I'm using PostgreSQL 7.3.3, ojb 1.0.rc3, compiled with jsdk 1.4.01 .
Any help would be greatly appreciated.
Here
All,
I would like to know how Ojb drives the Date format. I have this trouble :
When I use in Java :
String strDate = 2003-06-13 15:01:01.555;
SimpleDateFormat dformat = new SimpleDateFormat(-MM-dd
HH:mm:ss.S);
java.util.Date date = dformat.parse(strDate);
No Zip files available!
But any reasonable zip tool like winzip or winrar is able to work with tgz
files...
cheers,
Thomas
-Original Message-
From: Jim McLaughlin [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 12, 2003 4:32 PM
To: OJB Users List
Subject: Looking for *.1.0. rc3.* as
Hi Jim,
- Original Message -
From: Jim McLaughlin [EMAIL PROTECTED]
To: OJB Users List [EMAIL PROTECTED]
Sent: Thursday, June 12, 2003 4:32 PM
Subject: Looking for *.1.0. rc3.* as *.ZIP
Are there *.zip of the *.1.0.rc3.* instead of the *.tgz ?
No. If you have problems to unzip try to
Hi all,
there is a test case called ManyToManayTest.java
in the test suite ([db-ojb]/src/test/org/apache/ojb/odmg).
These tests all passed well. It would be a good thing
if someone would add a new test to point out the
problems (bug?).
regards,
Armin
- Original Message -
From: Eric
Hi Steve,
,
Hi all,
We're starting to use OJB to replace hand coded SQL in some
of our objects
now. Due to a flaky architecture, we have a 'User' object that maps to
several tables. Here is the schema:
BV_USER
USER_ID INTEGER
ACCOUNT_ID INTEGER
Anyone seen this before? I can't imagine that I am the first one to try
and use this platform on Oracle 8.1.7?
[torque-insert-sql] Failed to execute: CREATE TABLE OJB_DMAP_ENTRIES ( ID
NUMBER NOT NULL, DMAP_ID NUMBER NOT NULL,
KEY_OID LONG RAW, VALUE_OID LONG RAW )
[torque-insert-sql]
Found the answer once I was able to access the archives. For reference:
In src/schema/ojbcore-schema.xml
Change:
column name=KEY_OID type=LONGVARBINARY/
column name=VALUE_OID type=LONGVARBINARY/
to:
column name=KEY_OID type=VARBINARY/
column name=VALUE_OID type=VARBINARY/
Peter
Since it was an error on my part for setting auto-update=true I'm not sure
you need the test. What result should the test be expecting? It would
probably more appropriate if an exception was thrown stating that
auto-update must be set to false under ODMG and JDO.
Eric
-Original
Hi Eric,
- Original Message -
From: Eric Northam [EMAIL PROTECTED]
To: 'OJB Users List' [EMAIL PROTECTED]
Sent: Thursday, June 12, 2003 8:27 PM
Subject: RE: ODMG api with m:n mapping.
Since it was an error on my part for setting auto-update=true I'm
not sure
you need the test. What
Hi,
You have to create an interface and your class implement that interface.
And then you have to cast whith that interface.
IA tA = (A)tIter.next();
Vinicius Bomfim
''-- Mensagem Original --
''Reply-To: OJB Users List [EMAIL PROTECTED]
''Reply-To: ??? [EMAIL PROTECTED]
''From:
My output is below but it looks like most of my test cases failed. Anyone
have any idea what mught be causing the problem? It looks like I got
through the DB creation steps just fine. Is there a properties or XML
file I need to change in order to configure junit?
I am running Oracle 8.1.7
Hello all,
I'm trying to deploy OJB 1.0 RC3 in a web application. I've been struggling for the
last few hours trying to figure out why this MetadataException occurs. I'm a newbie
with OJB so I have a hard time understanding some of these OJB errors. I would really
appreciate it if you could
Hi All
Having struggled with using a collection to hold a 1-n relationship using
the ODMG API I have come up with the following basic code (to be refactored
later).
I would appreciate any comments (especially as I would not want others to
use it if I have made errors).
Below the code is the
Thank you Ron!
From the FAQ:
Q: I don't like OQL, can I use the PersistenceBroker Queries within ODMG?
A:
Yes you can! The ODMG implementation relies on PB Queries internally!
Several users (including myself) are doing this.
If you have a look at the execute() method in
Hi!
Dose anyone have the same problem with us? We implement a ManageableDSetImpl class
that extends DSetImpl implements ManageableCollection.
We use it for collection type attribute in our every class and it works fine. But the
indirection table is sometimes inserted duplicate rows
after I
Aggh! This only works the first time through. Subsequent attempts to add
do not :-(
If anyone spots why, let me know, otherwise will look on Monday.
Cheers
Shane
-Original Message-
From: Shane Mingins [mailto:[EMAIL PROTECTED]
Sent: Friday, 13 June 2003 12:49 p.m.
To: '[EMAIL
It will depends largely on which RDBMS you use, and which OJB features you
use. I think all the basics features of OJB can do the trick.
Mauricio Castro.
- Original Message -
From: Aaron Longwell [EMAIL PROTECTED]
To: OJB User [EMAIL PROTECTED]
Sent: Friday, June 13, 2003 12:14 AM
Do you have any examples of projects you've seen/worked on?
i.e.: Using Oracle, widgets.com easily handles 500,000 requests an hour
I'm actually not that concerned about using OJB for my current
project the load isn't that large. But I would like to know the
limits of the technology.
Hi Aaron.
I don't have any real life example with OJB. I worked in the design and
developing of a server written in Java that handled a very heavy load and
has a complex data model, it was mounted in a Solaris/sparc machine with
Informix. We used object locks, caches and many features that OJB
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