s like a regular Many-To-Many relationship that should
> just work.
>
> On Mon, May 6, 2024 at 12:46 PM Markus Reich
> wrote:
>
> > Hi,
> >
> > I'm on the latest release 4.2 of Cayenne and run in a problem when
> creating
> > a many to many relationship
Hi,
I'm on the latest release 4.2 of Cayenne and run in a problem when creating
a many to many relationship.
I had table A und table B and a joining table C which contain the ID
columns of A and B
The relation is defined as many to many and Dep PK is marked for A and B,
further the cascading of
e to decide what part of the PK
> to PK relationship is leading.
>
> On Wed, Apr 12, 2023 at 9:34 AM Markus Reich
> wrote:
> >
> > Hi,
> >
> > I'm using Cayenne 4.2.RC2 and have a special problem when deleting or
> > creating objects that have a relation to others.
>
Hi,
I saw that the web module is deprecated since 4.2
I checked the DB First docu of 4.2. but there's the module still in use?
What is the new way to use cayenne with J2EE apps?
best regards
Meex
is set there.
>
> log4j.logger.org.apache.cayenne.log.JdbcEventLogger = INFO
>
> On Wed, Oct 28, 2020 at 2:35 AM Markus Reich
> wrote:
>
> > Hi,
> >
> > I'm using Cayenne 4.1.
> > I have an an object A with an one to one relation to another object B,
> > in object B I got an co
method and with a
RefreshQuery but it stays 0?
regards
--
*Markus Reich*
Waldweg 62
6393 St. Ulrich am Pillersee
www.markusreich.at / www.meeximum.at
markus.re...@markusreich.at
dea is using EXISTS instead of JOIN +
> DISTINCT for to-many conditions [2].
>
> Enjoy M2!
>
> Andrus
>
> [1] https://cayenne.apache.org/2020/10/cayenne-42m2-released/
> [2] https://issues.apache.org/jira/browse/CAY-2684
--
*Markus Reich*
Waldweg 62
6393 St. Ulrich am Pillersee
www.markusreich.at / www.meeximum.at
markus.re...@markusreich.at
idationQuery?
>
> Actually I somehow missed it in my example. I do. But the DB is MySQL, so
> the query is either this, or a select from a small table:
>
> validationQuery: select 1;
>
> Andrus
>
>
> > On May 9, 2017, at 12:11 PM, Markus Reich <markus.re...@marku
a problem that you
> describe. What are the connection pool settings?
>
> Andrus
>
> > On May 8, 2017, at 10:57 PM, Markus Reich <markus.re...@markusreich.at>
> wrote:
> >
> > Hi,
> >
> > I have a problem with our JNDI DataSource (Catalina Connection
Hi,
I have a problem with our JNDI DataSource (Catalina Connection Pool).
After a while I got a lot of active conns in the Pool (I can see them in
via JMX), when I take a look in Oracles v$session, all sessions/conns are
in IDLE state?
The Problem is, that the pool thinks all sessions are active
ok, I uploaded the screenshot
https://drive.google.com/file/d/0B_9GdYVKbcezelB0ZGlEb1Bmc1k/view?usp=sharing
John Huss <johnth...@gmail.com> schrieb am Di., 2. Mai 2017 um 16:04 Uhr:
> The screenshot didn't come through for me.
>
> On Tue, May 2, 2017 at 5:17 AM Markus R
Hi,
I have a question for a stacktrace I took on our prod. system.
We are analyzing performance issues and found the method
Invocation.equals(), when we drill down we get to the cayenne events.
Is there someone who could explain those Invocation objects, is this the
shared cache?
I added a
creating a context
> is very expensive, though? It should actually be pretty cheap
> memory/cpu-wise.
>
> As for copying objects, are you copying committed objects or copying
> new/modified objects and you need the new values?
>
> mrg
>
>
> On Thu, Apr 20, 2017 at 7:12
Hi,
I have a very special problem :-/
We want to use a cayenne object as detached object, for a simple object
this works fine, as the attribute values are hosted in a value map, but we
need a context when we want to use the relations too :-/
What would be the best approach?
At the moment we
elect "Callbacks" tab). In the callback method you can reset the values.
> More info on callbacks:
>
> http://cayenne.apache.org/docs/4.0/cayenne-guide/lifecycle-events.html
>
> Andrus
>
>
> > On Mar 8, 2017, at 10:31 PM, Markus Reich <markus.re...@markusreich.at>
> w
a
> callback/listener solution to it?
>
> Andrus
>
> > On Mar 6, 2017, at 5:04 PM, Markus Reich <markus.re...@markusreich.at>
> wrote:
> >
> > Hi,
> >
> > I always thought that when the content of an object changes (by commit)
> the
> > version gets
Hi Maik,
maybe you can use the new iterator and split the iterator for parallel
computation?
public static Stream asStream(Iterator sourceIterator, boolean
parallel) {
Iterable iterable = () -> sourceIterator;
return StreamSupport.stream(iterable.spliterator(), parallel);
}
found at
Hi,
I always thought that when the content of an object changes (by commit) the
version gets incremented. I analyzed this a bit further and found sthg.
which is very clear for me :-/
When I have two DataObjects with the same key/id and I change a value in
one Object, I got a higher version after
t local cache get in effect? Either I have references to
> objects
> >> anyway, or I would need to refetch them, which would go through to the
> >> database, right? In what case would I get a benefit from a local cache?
> I
> >> didn't find answers to this in the Cayenne
Hi,
I'm looking for a more detailed explaination of the caching mechanism, as
we are running a quite important and big web application with cayenne, I
want to fine tune, because we run in some performance issues.
I only found this
Hi Maik,
thx for your detailed and quick answer! Ok the thing with the ChildContext
was my fault, although I should know better, shame on me :-/
But anyway the result of my test is the same.
What I can verifiy is that when you commit sthg to a context, the child
contexts gets synched
Hi,
I'm having some troubles understanding commitChanges() and
commitChangesToParent() :-/
I've created a test case with two ObjectContexts
ObjectContext context1 = runtime.newContext();
ObjectContext context2 = runtime.newContext();
then I load the same entity in both contexts
of this?
On Jul 31, 2015, at 5:18 PM, Markus Reich markus.re...@markusreich.at
wrote:
Hi,
we've some problems with oracle and timzone in combination with daylight
savings :-(
When I search the web to this topic, I can see that we are not the only
one
having problems concerning oracle
Hi,
we've some problems with oracle and timzone in combination with daylight
savings :-(
When I search the web to this topic, I can see that we are not the only one
having problems concerning oracle and daylight saving ;-)
But it seems that there's no proper solution to fix it :-(
We found a
looks good, how to I get the dataMap?
I have two Maps in my Configuration?
2015-04-27 1:55 GMT+02:00 Aristedes Maniatis a...@maniatis.org:
Something like:
for (DbEntity dbEntity : dataMap.getDbEntities()) {
dbEntity.setSchema(schema);
}
On 27/04/2015 7:35am, Markus Reich wrote:
Hi
PERFECT!
thx
2015-04-28 0:18 GMT+02:00 Aristedes Maniatis a...@maniatis.org:
On 28/04/2015 5:57am, Markus Reich wrote:
looks good, how to I get the dataMap?
I have two Maps in my Configuration?
ObjectContext - EntityResolver - DataMaps
--
--
Aristedes Maniatis
Hi,
is it possible with cayenne 4.0 to use a dynamic data map?
I have following requirement:
I have a db scheme that is fix for all users.
I habe a second dynamic scheme where the entities are equal, just the
scheme names is dynamic?
regards
Meex
?
Andrus Adamchik and...@objectstyle.org schrieb am Fri Dec 19 2014 at
11:24:29:
Yeah, you'd start 2 runtimes, and rename a subset of DbEntities in one of
them to add _A.
Andrus
On Dec 19, 2014, at 11:51 AM, Markus Reich markus.re...@markusreich.at
wrote:
ad 1., yes it's a multiuser
about your
situation; Are you using Spring framework or some other DI framework at
all? Are you wanting one ObjectContext per request-response cycle?
Regards;
On 23/12/14 2:13 am, Markus Reich wrote:
As I'm using cayenne in a JSP environment, where would be the best place to
create the 2nd
in the
running app? Is this for all sessions or just specific users?
Andrus
On Dec 19, 2014, at 10:08 AM, Markus Reich markus.re...@markusreich.at
wrote:
Hi,
I need some hints for a very special issue :-)
We have archived old entries of our tables to shadow tables, which have
exactly
are on Cayenne 3.1 / 4.0 here). One mapped to access regular tables, and
another - the archive tables. And depending on a given user state, you
allocate them an ObjectContext from the corresponding runtime.
Andrus
On Dec 19, 2014, at 11:24 AM, Markus Reich markus.re...@markusreich.at
wrote:
Hi
, Markus Reich
markus.re...@markusreich.at
wrote:
Hi Andrus,
the switch is durring runtime, so it's not defined at start up. The
trigger
is e.g. a checkbox in the ui where the user can decide if he want to
read
from archive. One idea was to create a view over archive and real
table
:
With cayenne 3.1, as I can get the connection to the database to pass it to
jasperreports?
René
--
*Markus Reich*
Waldweg 62
6393 St. Ulrich am Pillersee
www.markusreich.at / www.meeximum.at
markus.re...@markusreich.at
that it is there. DDL operations do though.
Something to think about ...
Andrus
On Jun 24, 2014, at 1:51 PM, Markus Reich markus.re...@markusreich.at
wrote:
Hmm, I think it's just the INSERT command, a solution would be that only
values are inserted that are not NULL? As you check
Hi,
would it make sense to add in Cayennen Modeler a field to set a default
value. Cayenne set's per default all fields to null, if they weren't set in
Java?
regards
Meex
.
--
Markus Reich
Moosbach 28/2
6392 St. Jakob i.H.
www.markusreich.at / www.meeximum.at
markus.re...@markusreich.at
perfect thx
2014-02-17 8:44 GMT+01:00 Andrus Adamchik and...@objectstyle.org:
Here is a Cayenne-agnostic way:
String url = dataSource.getConnection().getMetaData().getURL()
HTH,
Andrus
On Feb 17, 2014, at 10:41 AM, Markus Reich markus.re...@markusreich.at
wrote:
Hi
Hi,
is it possible to get the connection URL of the data-source, specified in
the cayenne*.xml?
regards
Markus
Hi,
is there a way to get a unchanged (original version) of a CayenneDataObject
that is changed and not commited? Or does a rollback reload data from DB?
regards
Markus
Hi,
is there a possibility to disalbe optimistic locking for certain entites in
runtime?`
e.g. the user get's info that there's a optimistic locking problem, then
the user can force the commit ignoring the optimistic lock?
regards
Markus
Hi,
I've a question concering child contexts, when I add an object to a child
context with method localObject, I thought the object is really from parent
to child context?
But when I run the following JUnit Test, it doesn't fail, although it
should?
@Test
public void testChildContext() {
the commitChangesToParent() moves the object from child to
parent context? So after the commitToParent() the data is written and
committed to db?
regards
Meex
2013/9/5 John Huss johnth...@gmail.com
You have to assign the result of localObject.
John
On Sep 5, 2013 12:59 AM, Markus Reich
.**
getJavaClass(**DefaultAdhocObjectFactory.**java:102)
at org.apache.cayenne.util.Util.**getJavaClass(Util.java:658)
at org.apache.cayenne.map.**ObjEntity.getJavaClass(**
ObjEntity.java:299)
--
*Markus Reich*
Moosbach 28/2
6392 St. Jakob i.H.
www.markusreich.at / www.meeximum.at
markus.re
perfect, thx
2013/7/24 John Huss johnth...@gmail.com
getContext() was renamed to newContext()
On Wed, Jul 24, 2013 at 3:51 PM, Markus Reich
markus.re...@markusreich.atwrote:
Hi,
I'm using following code for unit testing:
package db;
import org.apache.cayenne.ObjectContext
though. All
that is needed is that all contexts access those objects via a query
instead of storing a direct reference.
Andrus
On May 16, 2013, at 12:14 PM, Markus Reich markus.re...@markusreich.at
wrote:
:-) sorry, I try it more detailed
I have a multiuser Tomcat Webapp, the DB
more detail?
Also does your interface needs to know when an object is invalidated right
at that moment or is it enough to make the object hollow so that it is
refetched lazily on next access?
Andrus
On May 16, 2013, at 7:52 AM, Markus Reich markus.re...@markusreich.at
wrote:
would
Hi,
is it possible to use wildcards in prefetch paths?
e.g. query.addPrefetch(paintings.gallery);
regards
Meex
Hi,
is there really no better way than described here:
http://markmail.org/message/plnaj4zj4gxrt6hk
regards
Meex
, Markus Reich
markus.re...@markusreich.atwrote:
Hi,
is it possible to use wildcards in prefetch paths?
e.g. query.addPrefetch(paintings.gallery);
regards
Meex
--
*Markus Reich*
Moosbach 28/2
6392 St. Jakob i.H.
www.markusreich.at / www.meeximum.at
markus.re
idea to add that in the future … )
On May 15, 2013, at 4:36 PM, Markus Reich markus.re...@markusreich.at
wrote:
oops, sorry, it should be like this
query.addPrefetch(paintings.*);
2013/5/15 Michael Gentry mgen...@masslight.net
Hi Markus,
I don't see a wildcard
the data is changed.
Andrus
On May 15, 2013, at 4:28 PM, Markus Reich markus.re...@markusreich.at
wrote:
Hi,
is there really no better way than described here:
http://markmail.org/message/plnaj4zj4gxrt6hk
regards
Meex
--
*Markus Reich*
Moosbach 28/2
6392 St. Jakob i.H
refresh events via JMS. Your external process would send such
events via ActiveMQ (that supports a bunch of command-line friendly
protocols, not just JMS) whenever the data is changed.
Andrus
On May 15, 2013, at 4:28 PM, Markus Reich markus.re...@markusreich.at
wrote:
Hi,
is there really
Hi,
is there a possibility to disable the default cayenne caching mechanism
used to get relational data?
I already set Shared Cache to false and Number of Objects to 0, but it
still doesn't work :-(
regards
Meex
context of that context
and work with a copy of the object in the child context.
On Wed, Apr 24, 2013 at 2:37 PM, Markus Reich
markus.re...@markusreich.at wrote:
Hi,
is it possible to revert changes of an object? I don't want to use
rollback
because changes of other objects shouldn't
Hi,
is it possible to revert changes of an object? I don't want to use rollback
because changes of other objects shouldn't be reverted?
I know about child contexts, but my problem is, i select a collection of
object, and change them in a differnt UI view and in this view I want to
revert the
use looks like..
CommentListProvider.addComment(Object, text);
ListComment list = CommentListProvider.getCommentList(Object);
On Tue, Apr 23, 2013 at 9:21 AM, Markus Reich
markus.re...@markusreich.at wrote:
ok, e.g. I have a table comments with following columns
ID = Unique key
Hi,
with the wonderful Cayenne Modeler it's possible to easily create relations
between DB entities.
In my case I have a central table for comments, with a key specifying the
content.
No I need to map this key field to a constant literal, as I know it is just
possible to join fields with fields
Hi,
is it possible to create a second context to make an atomic update to an
object not disturbing the main context?
e.g.
in the application you can change data in a fom, there are two buttons
save and revert
by the way the user can add comments to the form, when he clicks add
comment a popup
/**
cayenne/DataChannel.htmlhttp://cayenne.apache.org/docs/3.1/api/org/apache/cayenne/DataChannel.html
parentChannel)
On 19/4/2013 21:49, Markus Reich wrote:
Hi,
is it possible to create a second context to make an atomic update to an
object not disturbing the main context?
e.g
of each other.
On Fri, Apr 19, 2013 at 4:14 PM, Markus Reich
markus.re...@markusreich.at wrote:
I tried, but it is not possible to commit data locally in a child
context!
I just can commitToParent :-(
2013/4/19 Marc A. Donis m...@runbox.com
I think what you need is a child context
.
--
*Markus Reich*
Moosbach 28/2
6392 St. Jakob i.H.
www.markusreich.at / www.meeximum.at
markus.re...@markusreich.at
. What is the best way to do it
in cayenne?
Should I have to filter them in memory or is there another way?
Thanks
--
*Markus Reich*
Moosbach 28/2
6392 St. Jakob i.H.
www.markusreich.at / www.meeximum.at
markus.re...@markusreich.at
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