Hi,
you could try to use the "old" DList implementation instead of the new
upcoming one.
Change in OJB.properties:
# org.odmg.DList implementation class
#DListClass=org.apache.ojb.odmg.collections.DListImpl_2
DListClass=org.apache.ojb.odmg.collections.DListImpl
#
# org.odmg.DArray implementation
(second attempt, my first mail seems lost in "space")
Hi,
you could try to use the "old" DList implementation instead of the new
upcoming one.
Change in OJB.properties:
# org.odmg.DList implementation class
#DListClass=org.apache.ojb.odmg.collections.DListImpl_2
DListClass=org.apache.ojb.odmg.col
Hello Armin,
I will send you my version of IdentityWeakHashMap (nothing in there to be proud of ;-).
> What about using a wrapper object for all keys and override 'equals'
I saw this solution in o.a.ojb.broker.util.IdentityHashMap.
I do not think we should use wrappers in this case - AnonymousPe
Ok, I was being stupid, If you clear the cache BEFORE a lookup the
problem does show itself just like an application restart. I am close
to having a test case ready but am out for the rest of the week. Ill
send you one on monday. Thanks for your time, have a happy hollidays.
Erik Engstrom
[EMAI
I had another use for an IdentityWeakHashMap recently.
Do you have an implementation? If not... this may be the kick in the
butt I need to go make one.
-Brian
On Dec 23, 2003, at 2:35 PM, Armin Waibel wrote:
Hi Andy,
do you mean we should implement a IdentityWeakHashMap?
What about using a w
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
Hi Andy,
do you mean we should implement a IdentityWeakHashMap?
What about using a wrapper object for all keys and override 'equals'
method to do a obj==obj comparison?
class IdentityKey
{
Object obj;
public IdentityKey(Object obj)
{
this.obj = obj;
Hi Dean,
in rc4 "empty cache" implementation use a temporary map to prevent
circular references. You can use ObjectCachePerBrokerImpl to prevent
circular references (this implementation is very similar to the old
version of empty cache)
regards,
Armin
Thurs, Dean wrote:
I have found my proble
I do not get the same results if I clear the cache as when the app is
restarted.
Erik Engstrom
[EMAIL PROTECTED]
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Hi,
Erik Engstrom wrote:
Thanks for your quick response. Ill work on a unit test.
that's great!
EquipmentType.specifications is an ArrayList. Nothing is different in
my code or configuration, the only change is RC4 to RC5. I havent used
the managed collections, I was thinking that perhaps I s
I have found my problem after reading the FAQ. I had circular
references in our model and we were using EmptyCache; however in RC4 we
did not run into the problem with infinite loading of objects.
-Original Message-
From: Thurs, Dean
Sent: Tuesday, December 23, 2003 1:15 PM
To: [EMAIL
Hi,
in your example only 2 System.out.println(..) lines performed, but 3
lines are printed?! Do you forget one println() statement?
regards,
Armin
Reda Benzair wrote:
Hi all,
I have a -simple?- question about OJB cache:
How can I force refreshing an object? Typically is there a method li
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
I have recently switched from rc4 to rc5 and I am having problems
retrieving a collection of client groups from my class client (shown
below). The class client-group uses an anonymous reference to the
client class but it appears that every time I try to retrieve the
client, it retrieves the client
Hi Dirk,
> I am wondering about the OJBRuntimeExeception: what kind of property
key is
> missed?
> Caused by: org.apache.ojb.broker.OJBRuntimeException: Property for key
> 'PersistenceBrokerFactoryClass' can not be found in properties file
> at
org.apache.ojb.broker.core.PersistenceBrokerFactory
Hi Armin,
thanks for your hint. OJB.properties has not been on the classpath indeed. Now it
works. However, I do not feel very comfortable with so many property files (ojb,
repository.xml ...) on the classpath. Is there another way, so I can store these files
where ever I want in my web applica
Hi,
I sending this error because i have no clues about how to solve it. it
seems to be inside the OJB code while store an object.
here is the extract of the error I got:
org.apache.ojb.broker.PersistenceBrokerException:
java.lang.ArithmeticException: / by zero
this is the stacktra
Yeah, Im using ODMG and auto-retrieve doesnt seem to make a difference.
Erik Engstrom
[EMAIL PROTECTED]
MnDOT
Traffic Management Center
>>> [EMAIL PROTECTED] 12/23/03 10:21 AM >>>
I think he said he was using ODMG, in which case that shouldn't be
needed. I *think*.
-Brian
On Dec 23, 2003, at
hi brian,
you're *right*, he's using ODMG and it's not needed there.
jakob
Brian McCallister wrote:
I think he said he was using ODMG, in which case that shouldn't be
needed. I *think*.
-Brian
On Dec 23, 2003, at 11:17 AM, Jakob Braeuchi wrote:
hi erik,
have tried setting auto-retrieve="
I think he said he was using ODMG, in which case that shouldn't be
needed. I *think*.
-Brian
On Dec 23, 2003, at 11:17 AM, Jakob Braeuchi wrote:
hi erik,
have tried setting auto-retrieve="true" in your collection-descriptor
named "specifications" ?
jakob
Erik Engstrom wrote:
Howdy,
Tha
From the current ODMG Transaction the easiest way is to cast it to a
TransactionImpl, get the broker, and clear the cache form that:
import org.apache.ojb.odmg.TransactionImpl;
...
Transaction tx = impl.currentTransaction();
((TransactionImpl)tx).getBroker().clearCache();
-Brian
On Dec 23, 2003,
hi erik,
have tried setting auto-retrieve="true" in your collection-descriptor
named "specifications" ?
jakob
Erik Engstrom wrote:
Howdy,
Thanks for the great software! I have just upgraded from RC4 to RC5 and
it looks like you guys have made a lot of progress (especially in the
docs). I
hi thomas,
Thomas Mahler wrote:
Hi Sebastian,
Did you read
http://db.apache.org/ojb/tutorial3.html#Setting%20Load,%20Update,%20and%20Delete%20Cascading
?
You encounter the interference of two features here: the cascading
operations feature and the removal-aware collection.
1. If you remove a
Workaround: Replacing WeakHashMap by IdentityWeakHashMap in
AnonymousPersistentField.fkCache.
IdentityWeakHashMap (similarly to java.util.IdentityHashMap) uses reference-equality
in place of object-equality when comparing weak
keys. Unfortunately WeakHashMap has most of the relevant methods as
Thanks for your quick response. Ill work on a unit test.
EquipmentType.specifications is an ArrayList. Nothing is different in
my code or configuration, the only change is RC4 to RC5. I havent used
the managed collections, I was thinking that perhaps I should. And now
for a dumb question: How d
Hi Dirk,
> I am wondering about the OJBRuntimeExeception: what kind of property
key is
> missed?
> Caused by: org.apache.ojb.broker.OJBRuntimeException: Property for key
> 'PersistenceBrokerFactoryClass' can not be found in properties file
> at
org.apache.ojb.broker.core.PersistenceBrokerFactory
Hmm, is there any chance you can provide a unit test that demonstrates
this? Nothing looks immediately wrong with the descriptor.
Do you get the same results if you clear the cache as when you restart
the app?
What is the collection type of EquipmentType.specifications?
Did you change your O
Hey guys.
I was looking in the docs for hints on how to use Oracle LOBs. I an
interested in CLOB right now, but will need BLOB later for image and
document storage. Is there any quick guide/hint out there on how to do
this? How will this differ from using text and longvarchar or longbinary
in o
On Dec 23, 2003, at 10:24 AM, Erik Engstrom wrote:
it looks like you guys have made a lot of progress (especially in the
docs).
Woot! Thanks.
Now to look into the problem you were having...
-Brian
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To unsubscribe, e-mail: [EM
Howdy,
Thanks for the great software! I have just upgraded from RC4 to RC5 and
it looks like you guys have made a lot of progress (especially in the
docs). I have an issue though, not sure if its something Im doing or if
something broke. If I use RC5 my collections are properly stored in the
da
Thomas Mahler wrote:
Hi Sebastian,
Did you read
http://db.apache.org/ojb/tutorial3.html#Setting%20Load,%20Update,%20and%20Delete%20Cascading
?
You encounter the interference of two features here: the cascading
operations feature and the removal-aware collection.
1. If you remove a Child and t
Hi Sebastian,
Did you read
http://db.apache.org/ojb/tutorial3.html#Setting%20Load,%20Update,%20and%20Delete%20Cascading
?
You encounter the interference of two features here: the cascading
operations feature and the removal-aware collection.
1. If you remove a Child and then delete the parent
Hi,
I am new to OJB and get stuck with the following exception message:
java.lang.ExceptionInInitializerError
at
org.apache.ojb.broker.PersistenceBrokerFactory.defaultPersistenceBroker(Unkn
own Source)
at
de.premiere.plato.app.dao.ojb.OJBPBPersistenceManager.storeObject(OJBPBPersi
stenceManag
Hi Thomas,
I tried that, and I still seem to get the same problem.
-Gus
Thomas Mahler wrote:
Hi Gus,
Gus Heck wrote:
Hi Thomas,
I don't think I did anything exotic in terms of commands executed...
public static IdManager findIdManager(Class c) {
if (!loadedOK) { // flag for lazy i
Sebastian,
One thing I notice that is different about your implementation (from
mine) is that your table name does not directly match your class name. I
think that _shouldn't_ matter, but it is a difference. There are few
other differences too.
I notice your jdo file is full of ojb-extensions
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