is this worth a JIRA ?
---
regards
Marc Logemann
http://www.logemann.org
http://www.logentis.de
Am 08.04.2009 um 23:50 schrieb Tedman Leung:
just as additional information, this is also true about any lazy
PersistentCollection too. I found that if I accessed the collection
while
it is in
Hi Fay -
Found my error here - my case now works on 1.2.1. I had a mapping error
that caused the reentrant flush exception -- this is probably not the
problem fixed by JIRA-1004.
This is the story - I have a class with a OneToMany relationship to
itself (parent has a collection of children
just as additional information, this is also true about any lazy
PersistentCollection too. I found that if I accessed the collection while
it is in an attached state the values are available, but as soon as it
becomes detached the collection becomes null even if I had just accessed
it prior to
Hi,
the queries are not slow. There are just a hell lot of queries but you
are right. THe problem is that i ve done EAGER fetching quite
extensively and it makes no sense to load all positions when i just
want to show a list of orders in the first place. So i really need to
invest some mo
Thanks for the feedback.
Judes suggestion looks promising for ManyToMany case but could
complicate my forward mapping.
Pinaki - Your suggestion sort of works ... because it creates a new
unmodifiableList every time getMyPcList() is called -- there is a constructor
invoked inside Collections.
On Wed, Apr 8, 2009 at 2:37 PM, Rick Curtis wrote:
>
> Daryl -
>
> Did you ever hear back from the MyEclipse people?
>
They have acknowledged the feature request but no other announcement. Here's
the thread:
http://www.myeclipseide.org/index.php?name=PNphpBB2&file=viewtopic&t=23019&highlight=
-
In case this post missed your attention...
http://n2.nabble.com/Voluteer-to-build-OpenJPA-Eclipse-plugin-tc2493580.html#a2493580
Daryl -
Did you ever hear back from the MyEclipse people?
-Rick
On Mon, Feb 23, 2009 at 1:31 PM, Pinaki Poddar wrote:
>
>
> What is the status of this request?
Daryl -
Did you ever hear back from the MyEclipse people?
-Rick
On Mon, Feb 23, 2009 at 1:31 PM, Pinaki Poddar wrote:
>
>
> What is the status of this request?
>
I just submitted it in response to your message today. I'll let you know if
I hear anything.
--
Daryl Stultz
__
Marc -
If all the join columns are indexed it should not be too slow. You
could put the same SQL into an "explain" analysis tool to investigate
it. For a start run the SQL outside JPA and see how many rows are returned.
Notice you are getting an orderpos, an order, a boxes, and two adresse
On Wed, Apr 8, 2009 at 1:11 AM, Paul Copeland wrote:
> Are there other forums or lists that are good for asking general JPA
> questions (not specifically OpenJPA)?
>
I found a General JPA forum on Nabble (
http://www.nabble.com/JPA-General-f27110.html). The activity was pretty
light but I did ge
On Tue, Apr 7, 2009 at 7:02 PM, Pinaki Poddar wrote:
>
> Hi Daryl,
> > Ah, so modifying the fetch plan is for the lifetime of the em? I think I
> like that.
>
> Yes. But there is more to it.
>
Thanks Pinaki (and Jay).
--
Daryl Stultz
_
6 Degrees Software and
Pinaki -
I tried your suggestion of not initializing the value of myPcList and I
get a null pointer exception when adding to an empty list.
I noticed your example was for Property access and Russell (and I) were
talking about Field access. Do you agree that it is necessary to
initialize an
Thanks Pinaki -
I think you are saying that at some point the proxy object does replace
the local List. Is that right?
I have seen that model - if (myPcList == null) myPcList = new
ArrayList() - in various examples (not sure where now). Thanks for
clearing that up. But then Craig Russell
Hi,
with OpenJPA 1.2.0 i am having some problems detaching attributes
which are in a fetch-group. My persistence.xml is:
My Domain class header:
@FetchGroups({
@FetchGroup(name="posDetail", attributes={
@FetchAttribute(name="deliveryAddresses")
})
})
public class Order {
I think making both join-columns not insertable and not updatable should
work.On the promotion (ownerSide) object
@JoinTable(name = "promotion_pc", schema="public",
joinColumns = {...@joincolumn(name = "promotion_id",
referencedColumnName = "id", insertable=false, updatable=false)},
Hi Paul,
Not really. We do have a JPA 2.0 expert group forum for the current spec
activity, but that mailing list is for topics specifics to the JPA 2.0 spec
that is under development (http://jcp.org/en/jsr/detail?id=317).
Hopefully, the members of the OpenJPA community can answer general JPA
que
On Apr 8, 2009, at 2:18 AM, Craig L Russell wrote:
On Apr 7, 2009, at 11:10 PM, Paul Copeland wrote:
Can OpenJPA replace a Collection when it is loaded?
With the code below when the list is initially empty you need to
create a List (ArrayList) so you can add elements to it. When I
persi
Hi,
According to JPA spec:
"If there are no associated entities for a multi-valued relationship of an
entity fetched from the database,
the persistence provider is responsible for returning an empty collection as
the value of the relationship."
That is what OpenJPA does. So the application do n
Hi,
> Is there a way to prohibit direct updates to a perisistent Collection?
What exactly happens if you wrap the list as unmodifiable as follows?
@ManyToMany (mappedBy="ownerSide", fetch=FetchType.LAZY,
cascade=CascadeType.PERSIST)
private List myPcList;
List getMyPcList() {
On Apr 7, 2009, at 11:10 PM, Paul Copeland wrote:
Can OpenJPA replace a Collection when it is loaded?
With the code below when the list is initially empty you need to
create a List (ArrayList) so you can add elements to it. When I
persisted new objects on the ManyToOne side and added them
Paul,
thx for pointing out that @ElementJoinColumn is definitely not needed
here. I removed them and at least everything works but unfortunately
as slow as before. My example was a simple one because i dont wanted
to show of the real one, but now since i really dont know what to do,
i mus
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