Hi,
I'm trying to do the following 1:n mapping. Class Project should have a
vector
of n Resource objects, while each Resource object should know it's Project
object.
Storing objects works fine, the references in the resource objects to
their project objects
are placed by OJB.
What does not work
Hi,
I have two applications which using 2 different databases. I have a
single repository.xml file with two and
with two different ccd-alias tag.
With PB and ODMG api, we can use this jcd-alias to differentiate the
connection. What is the equivalent method with JDO.
Anyone can help me ?
Best r
I have encountered a situation where OJB at different times generates
two different SQL queries from the same Criteria object, I guess
according to the order of some (unordered) collection.
My repository is like this:
Andrew, thanks for the quick response. Unfortunately, we're already using a
ReportQuery. Here's the code snippet calling OJB:
String[] columns = { "ypas.f_GetRotationDate ( " + listingId +
"," + locationId + ",'"
+ zuluStartDate + "') rotationDate"
};
Hi David,
I try latest CVS. Works for me.
Are you really use CVS head? Did you clean OJB with
'ant clean' before compile?
regards,
Armin
David Santos wrote:
Hi!
Just checked out CVS HEAD and when I try to make the jar of it I get this:
===
The only way that I can see is the one in tutorial 3. You have to add a
column
to DUAL called "CLASS_NAME" specifying which class that row belongs to.
http://db.apache.org/ojb/tutorial3.html#Mapping%20All%20Classes%20on%20the%20Same%20Table
Charlie
Glenn Barnard said the following on 5/20/2004
Hi!
Just checked out CVS HEAD and when I try to make the jar of it I get this:
==
D:\Fenix\Sources\OTHER_PROJECTS\db-ojb>ant jar
Buildfile: build.xml
jar:
set-archive-name:
set-archive-name-date:
detect-jdk:
check-jd
Based on looking in
org.apache.ojb.broker.accesslayer.sql.SqlSelectStatement.getStatement()
-- it looks like if no columns are specified, then it will do the
multimapped object select, which you are seeing.
It is clearer as what to do in the HEAD version, but in RC5, it looks
like if you change it
I posted this yesterdayWould someone PLEASE help me. Am running out of
time.
We use Oracle 9 and have several different functions we can call. In
OJB, they are all mapped with the table name of DUAL. For example:
SELECT function(args) AS column FROM DUAL
Our repository.xml has a table e
Thanks very much for your comments. Just a pair of comments:
b. You say I don't have to instantiate the variable 'state' inside the
constructor of class 'CityVO'. But if I don't put that code in the
constructor I get the following exception:
java.lang.InstantiationException: StateProxy
at
org.
I ended up spending time trying to understand proxies... confusing stuff
when you start out with ojb... these days it's making a little more sense :)
a. yes, it has to be of type StateProxy (the interface) as ojb will try to
instanciate it with a proxy object that implements the interface. If you
This is just a confirmation question about using reference proxies in OJB. I
have been using them in all my applications, but I would like to confirm
that I am making a good use of them.
So my way of using reference proxies is:
1) Let's consider two business entities: state and city. So I have:
Thx a million!
-Original Message-
From: Charles N. Harvey III [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 20, 2004 12:04 PM
To: OJB Users List
Subject: Re: how to count size of resultset in OJB
This works for me.
---
Per
This works for me.
---
PersistenceBroker broker = null;
try
{
broker = this.getPersistenceBroker();
return new Integer( broker.getCount( query ) );
}
catch( Throwable e )
{
Hi guys,
I guess this question has been asked by many people.
Basically, I'd like get the count(*) from query, that way, I can give
user an option if or not user want retrieve everything back.
I am wondering if there is any dicussion on this topic before. I'd
really appreciate if anyone can
Hello!
I need to connect to specified MsAccess file from OJB by using JDBC-ODBC
bridge.
Everything works quite well, but I need to connect with using specified
character set.
I read in this article that JDBC-ODBC allows to do it:
http://java.sun.com/j2se/1.4.2/docs/guide/jdbc/bridge.html
by using
Hi Daniel,
I will fix this in doc.
Thanks for the hint.
regards,
Armin
Daniel Perry wrote:
Thanks. I thought this was the case. I also found the relevant part of the
tutorial on the website...
"The classes participating in this relationship do not need to implement a
special interface to be used
Thanks. I thought this was the case. I also found the relevant part of the
tutorial on the website...
"The classes participating in this relationship do not need to implement a
special interface to be used in a collection proxy."
Might I suggest this is reworded to:
do not need to implement any
The collection descriptor needs to be in the 1 side, not the n side...
eg.
say you had project - task mapping (1 - n respectively)
If in the task table you have fk_project_id, and project has id, and in your
classes Project.java has id and tasks field, and Task.java has projectId,
and in the rep
hi gary,
an extent defines subclasses in the repository. these subclasses may reside in
their own tables or they may share a common table. each of the subclasses is
self-contained (it's mapped on one table only).
the super-reference is used to split up a class on multiple tables. each of the
ta
hi daniel,
when you use a collection-proxy tho whole collection is proxied so there's no
need to define an interface for the contained classes.
hth
jakob
Daniel Perry wrote:
I know that I need to use interfaces for classes if they are proxied
individually, but if I am only proxying collections, d
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