Folks,
there is a slow-going TSS thread on Cayenne vs. Hibernate and general
ease of use:
http://www.theserverside.com/news/thread.tss?thread_id=41372
Feel free to login to TSS and share your opinions ;-)
Andrus
than inflammatory.
/dev/mrg
On 7/22/06, Andrus Adamchik [EMAIL PROTECTED] wrote:
Folks,
there is a slow-going TSS thread on Cayenne vs. Hibernate and
general
ease of use:
http://www.theserverside.com/news/thread.tss?thread_id=41372
Feel free to login to TSS and share your opinions
On Jul 24, 2006, at 11:08 AM, Michael Gentry wrote:
loginid and password are Java (ObjEntity) attributes
Not really - see my other message.
Doesn't look like DataContextDeleteAction is smart about it:
if (relatedObjects.size() == 0) {
continue;
}
// process DENY rule first...
if (relationship.getDeleteRule() == DeleteRule.DENY) {
Yeah, syncing the existing model can get hairy. As a general
recommendation I would say do it by hand (add/remove attributes/
relationships and such).
However your specific case seems like something we should fix. Could
you please log a Jira issue?
Thanks
Andrus
On Jul 29, 2006, at 6:29
Hi Rafael,
Essentially the error means that Java runtime can't find cayenne.xml
anywhere in classpath. The catch is to put cayenne.xml and other XML
files in the root of an Eclipse *source* folder as shown on the
picture at the bottom of this page:
The first error seems to be related to the second - for whatever
reason JDBC connection fails (and DB2 is at its best not telling why).
I don't have a specific advice, as this can be any number of things
(including permissions, etc.). Try connecting from JDBC, bypassing
Cayenne and see if
On Aug 1, 2006, at 2:52 PM, Bryan Lewis wrote:
I have some old code that I've been running for a long time. It
creates
a caching SelectQuery like this:
SelectQuery query = new SelectQuery(MyEntityName);
query.setCachePolicy(QueryMetadata.SHARED_CACHE);
A shared cache can be cleaned up by doing
DataDomain.getSharedSnapshotCache().clear(). Also I am in the process
of implementing a pluggable externally managed cache in 3.0:
http://issues.apache.org/cayenne/browse/CAY-613
Andrus
On Aug 2, 2006, at 2:41 AM, Borut Bolčina wrote:
We are at
On Aug 3, 2006, at 11:33 AM, Mike Kienenberger wrote:
That's a bit odd.
Have you tried using createAndRegisterNewObject() instead?
newObject is part of the new ObjectContext api, and I haven't used
it myself.
'newObject' should work fine... This has to be something else.
Strange
On Aug 4, 2006, at 2:35 PM, Borut Bolčina wrote:
ERROR [04 avg 2006 20:14:44:859] Exception starting filter
CayenneFilter
org.objectstyle.cayenne.ConfigurationException: [v.1.2 July 18
2006] Error
during Configuration initialization. [v.1.2 July 18 2006] Domain
'name'
attribute must be
, Andrus Adamchik [EMAIL PROTECTED]:
On Aug 4, 2006, at 2:35 PM, Borut Bolčina wrote:
ERROR [04 avg 2006 20:14:44:859] Exception starting filter
CayenneFilter
org.objectstyle.cayenne.ConfigurationException: [v.1.2 July 18
2006] Error
during Configuration initialization. [v.1.2 July 18 2006] Domain
Probably should be the other way around - toOne relationship with
nullify and complimentary toMany with cascade. It is essentially
a question of which side of the relationship can exist independently
from another side, and which one can not.
Andrus
On Aug 7, 2006, at 10:37 AM, Bryan Lewis
Hi Borut,
(2) is essentially the same as (3), only this is a case of
unsupported remoting, in that it works in theory, but hasn't been
tested much to iron out any possible wrinkles.
Andrus
On Aug 8, 2006, at 4:51 PM, Borut Bolčina wrote:
Hello,
me again troubling you...
I just read
Hi Peter,
On Aug 15, 2006, at 6:48 PM, Peter Karich wrote:
I may be misreading your message, but isn't this as simple as not
defining the reverse relationship? That's why the documentation
says
if
Sorry, I mean: I defined A has many B and B has many A in the
modeller.
And now: how
Hi Hans,
[your address doesn't seem to be subscribed to the list, so be aware
that you can miss list-only responses]
Yes, relationships won't probably get copied the way you expect them.
IIRC someone posted some examples before on how to clone a
DataObject. In any event it should be
Hi Malcolm,
You can traverse an object graph using ClassDescriptor with a custom
PropertyVisitor. For instance DataContext.registerNewObject(..)
implements a similar algorithm for the NEW objects.
Andrus
On Aug 17, 2006, at 7:33 AM, Malcolm Edgar wrote:
Hi All,
I am currently having
Would it make sense for Cayenne to throw an exception when an outer
join is attempted?
Could you be more specific on when it should detect that? IIRC there
were some discussions on that in the past. You provide no references
though.
Also there is an effort underway to support outer joins
Good point. Another suggestion: instead of using ASTScalar, you can
implement a similar custom subclass that extends ConditionNode. E.g.
ASTBoolean extends ASTCondition.
We should include this in Cayenne at some point too...
Andrus
On Aug 16, 2006, at 4:47 PM, Øyvind Harboe wrote:
I'm
The easiest way to order on a property that is not really a property
is to create a cover getter for it in the persistent class:
public int getId() {
return DataObjectUtils.intPkForObject(this);
}
Andrus
On Aug 17, 2006, at 10:11 AM, Zvonimir Spajic wrote:
Hello,
is there a nice way to
Just sent a reply to dev, but of course user list is a better place
for this discussion.
http://objectstyle.org/cayenne/lists/cayenne-devel/2006/08/0198.html
Andrus
On Aug 23, 2006, at 11:59 AM, Thilko Richter wrote:
Hello @ all,
in which order(sorting) the querys are executed on commit?
I haven't used GlassFish but indeed there is no reason why Cayenne
wouldn't work with it.
Andrus
On Aug 21, 2006, at 5:03 PM, Michael Gentry wrote:
Has anyone used Cayenne with GlassFish? I was thinking we should add
something to:
This is not supported at the moment, but there are some early
attempts to support it in Cayenne expressions and also JPA
expressions. E.g.:
http://cwiki.apache.org/CAY/expression-functions.html
In other words we need some design discussion to move forward this
effort, either on the dev
Hi Marcin,
IIRC these major changes have occurred:
* package renaming (this also requires the new Modeler)
* removal of deprecated API
* (the one that you noted) temporary InvalidateListCacheQuery was
replaced with a more generic RefreshQuery
* removal of Log4J (and explicit logging
On Aug 23, 2006, at 11:35 PM, Mike Kienenberger wrote:
Here's where I'm finding that I need outer joins:
1) If two qualifiers for a non-mandatory relationship path are or'd
together. This is also what Øyvind Harboe reported. It may be that
the non-mandatory part is irrelevent.
2) If
Hi,
On Aug 24, 2006, at 11:43 AM, Øyvind Harboe wrote:
Q1: Do the results of Expression.filterObjects() for all records in a
table and the same expression used in SelectQuery always match?
I hope the answer is not currently, but once outer joins are
supported, yes, because it will give me the
How is the column mapped in the Modeler? Have you tried mapping it as
BIGINT?
Andrus
On Aug 28, 2006, at 1:22 PM, Tobias SCHOESSLER wrote:
I use cayenne 1.2, MySql. AUTO_INCREMENT ids
the type of the id field in the mysql schema is set to
INT NOT NULL AUTO_INCREMENT UNIQUE
I create an
Andrus Adamchik
[EMAIL PROTECTED]
le.orgTo
cayenne-
[EMAIL PROTECTED]
Tuesday,
29cc
August 2006 11
retrieve
the
value later via cayenne? Isn't the bug rather to search there?
Andrus Adamchik
[EMAIL PROTECTED]
le.orgTo
cayenne-
[EMAIL PROTECTED
On Aug 29, 2006, at 4:16 PM, Tobias SCHOESSLER wrote:
But still you are right there is a bug in mysql too. If the column
type is
INT and not INT UNSIGNED it should return java.lang.Integer but it
returns
java.lang.Long instead. This was my first observation.
Still probably worth fixing
I'd appreciate that.
Andrus
On Aug 29, 2006, at 5:31 PM, Tobias SCHOESSLER wrote:
ok, I got it. You want me to add a Jira entry for this? I never did
this
before ... : |
Andrus Adamchik
[EMAIL PROTECTED]
le.org
Hi Borut,
That's great news!
Hope you don't mind if I put this announcement on our web site and
mention these sites under Success Stories
Andrus
On Sep 2, 2006, at 2:10 PM, Borut Bolčina wrote:
Hello,
I waited for the dust to settle after deploying two sister web
applications
using
On Sep 5, 2006, at 6:12 PM, Borut Bolčina wrote:
I have an approval for putting the sites under Success Stories.
Cool.
In the
meantime I will try to design a better web page. Can I use the
materials
from Cayenne User Guide pdf (Copyright (c)2001-2005 ObjectStyle Group)
and from current
On Sep 5, 2006, at 12:18 PM, Lachlan Deck wrote:
1) Are initial values set with server code propagated to clients
when an object is created on the client?
The following url...
http://cwiki.apache.org/confluence/display/CAY/Setting+Initial+Values
... suggests using public void
Checking the resources folders in the source tree, namespace
conflict may occur only in the class generation templates. So if you
only rely on custom templates, you should be fine.
Andrus
On Sep 6, 2006, at 2:41 AM, Mike Kienenberger wrote:
Can anyone think of a reason why we couldn't use
I'm looking for ideas to debug, ideas on how likely it is that
Cayenne and the database have differing takes on what the next
primary key should be and things like that.
That's what I suspect too... Sequence increment must be the same in
DB and in Cayenne model (note that in Cayenne increment
On Sep 7, 2006, at 3:32 PM, Arturo Pérez wrote:
The
sequence was created like:
CREATE SEQUENCE pk_article INCREMENT 1 START 200
;
so I need to redo that with a INCREMENT 20?
Ok, INCREMENT 1 explains the mismatch. You can either redo the
sequences changing the increment, or edit PK
Hi Eric,
Yes, it looks like the driver is missing. To make it available to
Tomcat container you need to put it in $TOMCAT_HOME/common/lib. I
don't recall if this location is Tomcat version specific, so if this
doesn't work, you can try other common lib folders under $TOMCAT_HOME.
Andrus
Borut and Ari,
Thanks a lot for offering help with site design! I also appreciate
the focus on usability. I'll comment about navigation in a separate
message, here is general comments on the design.
* I like the idea of having disjoint content modules
* I do not like the look of the
On Sep 9, 2006, at 4:26 PM, Borut Bolčina wrote:
Top right items are shortcuts to deeper items which based on my
mental perception of content should also be exposed.
Good idea, but I don't think it'll work in an anonymous system
without a way to track user preferences. Different items are
On Sep 9, 2006, at 5:10 PM, Borut Bolčina wrote:
What is Community and its content?
Mailing lists, info on how one can participate, how to submit bugs,
some blurb about Apache, etc.
Development and Issue Tracking don't
belong there in my opinion because of their technical natures.
We
On Sep 9, 2006, at 6:46 PM, Borut Bolčina wrote:
I can live with that, it's just that it discards my idea of two site
focuses. We can experiment, I think we are all very open minded ;-)
This is where I misunderstood your intent initially. I think I follow
you now. See my other message on
Hi Peter,
Glad Cayenne worked out well for you and thanks for sharing Derby
experience.
On Sep 8, 2006, at 5:20 PM, Peter Karich wrote:
If I create a new object, can I query the database (e.g. a
SelectQuery) without a commit? I tried this, but it does not work?
Should'nt I get this
On Sep 11, 2006, at 5:22 PM, Dave Dombrosky wrote:
Andrus,
Those are the only objectstyle lines in the stack trace. The next
line up is my code calling a get method on a DataObject property, so
I'm not sure how seeing my code would be useful.
-Dave
Ok. That sort of answers my question.
On Sep 11, 2006, at 10:08 PM, Lachlan Deck wrote:
If not - maybe I can put a vote in for a delegate method being
added which is called just prior to the object return. ala
awakeFromInsertion(ObjectContext) :-)
BTW, JPA spec [1] defines a bunch of callback annotations
(PrePersist,
That's good to know :-)
On Sep 17, 2006, at 7:15 PM, Aristedes Maniatis wrote:
On 18/09/2006, at 9:08 AM, Andrus Adamchik wrote:
Somehow this discussion has died out. I hope nobody got offended
or decided it is not worth it just because there is a
disagreement. That would be really sad
More on the docs usability. Click project is almost unmatched in this
area. Maybe we should borrow some ideas, like this one:
http://click.sourceforge.net/docs/click-cheat-sheet.pdf
Andrus
On Sep 17, 2006, at 7:30 PM, Andrus Adamchik wrote:
That's good to know :-)
On Sep 17, 2006, at 7
Under what circumstances can there be a transaction which invokes
TransactionDelegate but no context at that time
DataContext is not bound to the current thread by default. User has
to enable this behavior, e.g. by using the filter:
http://cwiki.apache.org/CAYDOC/web-applications.html
Yeah, I would think this has to be abstracted in the JDBC layer. Dov,
do you have any specific problems that make you believe that this is
broken?
Andrus
On Sep 19, 2006, at 5:20 PM, Tore Halset wrote:
Hello.
We are using MS SQL Server with cayenne. nvarchar works with the
old (have
On Sep 20, 2006, at 2:10 PM, Borut Bolčina wrote:
1. The fact that Cayenne is undergoing a process for Apache family is
not nearly as important to be the first thing a user sees on the
front page.
As Kevin stated, this can easily suggest the immaturity of the
framework.
This is a
be through with that soon.
Andrus
On Sep 20, 2006, at 3:00 PM, Kevin Menard wrote:
Andrus Adamchik wrote:
On Sep 20, 2006, at 2:10 PM, Borut Bolčina wrote:
1. The fact that Cayenne is undergoing a process for Apache
family is
not nearly as important to be the first thing a user sees
Hi Marcin,
RefreshQuery built that way, unlike its predecessor
InvalidateListCacheQuery, doesn't do pattern matching on the names.
This was a bit inefficient. Instead it does exact match on the cache
group names. One or more cache groups are assigned explicitly by a
user of the original
Hi Arturo,
Yes, you'd need a custom ExtendedType to handle that. Those work just
fine. So as long as you can figure out how to read and write
interval via JDBC, you should be fine.
Andrus
On Sep 20, 2006, at 11:20 PM, Arturo Pérez wrote:
Hi all,
I would like to use the PostgreSQL
Yes, java.util.Date is Cayenne default mapping for the date types, so
if there are no other hints in the query, this is what Cayenne will use.
The type of fromDate is java.util.Date - I'm not even able to select
that type in the modeller
Actually you can - you should type java.util.Date
Until 3.0 invalidating query lists was totally up to the developer.
In 3.0 we added three things - RefreshQuery (mentioned by Ari),
query cache group concept, and pluggable QueryCache. This makes
clustering and refresh policy management much simpler. I am running
this latest code (3.0
of a report from me
will mean that things at least didn't get any worse. :-)
Andrus Adamchik wrote:
Ayhan, Wolfgang and others who have this synchronization issue - I
posted a patched version of 1.2.1 Cayenne:
http://dev.objectstyle.org/~andrus/cayenne-1.2.1-CAY-565-
patched.tar.gz
I would
Currently the news are entered in the main space (CAY). We can
incorporate this on the front page via different means such as
* A custom Confluence template (not sure if it has enough flexibility
for a sophisticated branded look)
* A script that grabs news via RSS and builds the static page
Hi Francesco,
I see. Essentially DataObject - Query set association would be an
analogue of 3.0 cache groups (where group name == entity name).
Actually in-memory checking procedure the way you describe it may not
be as bad as I originally thought. Matching object state before and
after
Folks,
I just deployed a throwaway instance of Confluence with an Auto-
export plugin configured:
Editable Space:
http://www.objectstyle.org/confluence-scratch/display/CAYSCRATCH/
Exported Space:
http://objectstyle.org/confluence-auto-export/CAYSCRATCH/
For those who are interested in
Hi Juergen,
I assume you have 2 DbEntities with the same name, mapped to
different ObjEntities (otherwise it wouldn't have worked in 1.1
either). Actually you can work around that issue by putting
conflicting entities in two different DataDomains, as domains do not
share EntityResolvers.
DataContext is not thread-safe, as it is intended for access by a
single user.
DataDomain and the rest of the stack underneath the DataContext is
thread-safe.
If a there is a chance of multiple threads belonging to the same user
to access the context (and its DataObjects) simultaneously,
with changing pk
types on
creation and retrieval . That's why i tried INT UNSIGNED and BIGINT.
Is your advise still correct for this ?
Andrus Adamchik
[EMAIL PROTECTED]
le.org
search Cayenne enabled services for
Slovenia
and Macedonia also.
-Borut
2006/9/30, Andrus Adamchik [EMAIL PROTECTED]:
Just got around to posting Borut's and Ari's success stories. They
should be on the website within ~20 minutes. Here is a link to the
news item:
http://cwiki.apache.org
On Oct 1, 2006, at 8:43 PM, Kevin Menard wrote:
o We should probably have the 1.1 documentation on the site. This
could be marked as a legacy release. 1.2 is still fairly young,
however, so we should make it easy for those still using 1.1 to get
appropriate support.
My idea of how
So let me repost how the menu may look like with old releases links:
* Version 2.0
* Version 1.2
* Legacy Releases
* Development Release (Version 3.0)
Legacy Releases can either expand down to two more levels, or
simply open a page listing all of them.
Andrus
On Oct 2, 2006, at 12:24 PM,
Yeah, need to write the docs. Here is a short example:
DataDomain domain;
int callbackType; // types are defined in
'org.apache.cayenne.map.LifecycleEventCallback' interface
domain.getEntityResolver().getCallbacks(callbackType).addListener(
MyClass.class,
Since our nightly builds do not have a working Modeler, I posted
platform-specific snapshots here for those who want to try 3.0:
http://people.apache.org/~aadamchik/modeler-snapshot-10032006/
1. Mac OS X: You'll need to download and unpack
CayenneModeler.app.tar.gz
2. Windows: You'll
Hi Felipe,
Here is a docs page on auto-incremented keys:
http://cwiki.apache.org/confluence/display/CAYDOC/Generated+Columns
Also see my comments below...
On Oct 4, 2006, at 3:13 AM, DOMINGUEZ Felipe wrote:
Hello every body.
I am using Cayenne to query hsqldb.
On HSQLDB I have a few
Yes it did. It can be set via API (JdbcPkGenerator.setPkCacheSize(..)):
http://incubator.apache.org/cayenne/1_1/api/cayenne/org/objectstyle/
cayenne/dba/JdbcPkGenerator.html
Andrus
On Oct 6, 2006, at 10:53 AM, Mike Kienenberger wrote:
As Michael says, not sure if the default 1.1 jdbc pk
Congrats to Malcolm and the Click team!
Click is indeed the easiest-to-use web framework on the market. Hope
that the final release, implying stable status, will lead to much
wider adoption.
Cheers,
Andrus
On Oct 4, 2006, at 11:59 PM, Malcolm Edgar wrote:
Hi All,
Click Framework 1.0 is
on
about frameworks I might as well jump in with my views as well but
in the back of my mind know that it has little to do with cayenne
itself. I was questioning myself more than anything.
Andrus Adamchik wrote:
Regarding my response to the announcement, this is my opinion from
That's a relief. Otherwise it would've been a pretty serious bug
requiring immediate attention :-)
Andrus
On Oct 9, 2006, at 8:23 AM, DOMINGUEZ Felipe wrote:
Hi again.
I have solved the problem I had.
There where some of my classes that I did not recompile and they were
referring to the
since I upgraded to Cayenne 2.0?
-david
-Original Message-
From: Andrus Adamchik [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 12, 2006 11:09 AM
To: cayenne-user@incubator.apache.org
Cc: David Norwood
Subject: Re: ClassCastException in DataObject types
David,
So what type is returned
I just created a small test project and it seems to work just fine.
The jar path includes cayenne.jar, task.jar and driver.jar.
Andrus
public class TestTask extends Task {
protected File cayenneProject;
public void setCayenneProject(File cayenneProject) {
Hi Felipe,
Hmm... This bounce message (... the recipient's mailbox is full...)
probably referred to just one of the list subscribers. Anyways the
attachment was stripped from the message delivered to the list (IIRC
this is an anti-virus feature of the Apache list server). I suggest
to
Interesting... so the performance degrades in a linear fashion as a
function of the total number of the created contexts. Quick glance at
the code suggests this may have something to do with registering
DataContext's ObjectStore as a listener for the parent cache events.
Not sure what
Menard wrote:
Andrus Adamchik wrote:
I am glad to announce Cayenne 2.0.1 release - our first
release via
Apache incubator:
Woo hoo. I imagine there will be maven builds available. If
that be
the case, you'll want to update the documentation pointing to a
groupId
Very cool! I suggest that we add an entry about the presentation to
the Cayenne Wiki news section and link to it from the front page. If
you need more info on how to do that, please ping me on the dev list.
1) JPA support was high on many folks list of stuff that they
wanted to see.
Hi Marko,
As the goal of the default synchronization mechanism is
*synchronization*, new objects do not generate events as there are no
stale cache entries in peer VMs that need to be refreshed. So your
observations are consistent with desired Cayenne behavior.
For custom event
Yeah, we embraced your expression ideas, just never got around to
implementing them :-) You may have seen other recent discussions
between Mike K. and myself on how to better do the splits and how to
combine this with similar JPA API (EJBQL).
Current default Cayenne unit tests are probably a bad model, as most
bootstrap code was written before Cayenne was even operational.
However the new Maven-based integration test package that targets
testing of POJO's is the state of the art as far as I am concerned
(can be used from Ant as
Yeah, using internal event mechanism in the application can be
confusing. Been there myself, so now I am advertising the
(unreleased) 3.0 callbacks as a better substitute :-)
Andrus
On Oct 31, 2006, at 11:10 AM, edward pedersson wrote:
Found the problem. have to register a GraphEvent with
Ok, looks like no WO is involved (just reread the original message -
doh!). Still the advice given in the quoted thread on how to compare
the classloaders should help to debug the problem.
Andrus
On Nov 1, 2006, at 3:01 PM, Andrus Adamchik wrote:
This seems like some kind of classloader
Here is the latest code example used in our integration tests. Works
with any DB, including HSQLDB in-memory URL mentioned earlier:
http://tinyurl.com/y6ekbs
Andrus
On Nov 2, 2006, at 12:50 PM, Mike Kienenberger wrote:
You can take a look at the cayenne unit tests.
These work (or at least
I think Cris is right - try clearing the length field of the
'rechnungsBetrag' column in the Modeler.
Andrus
On Nov 3, 2006, at 9:59 AM, Christian Mittendorf wrote:
This is the db entity:
db-entity name=invoices catalog=boni
db-attribute name=anum type=VARCHAR length=45/
Just to reiterate, these solutions where already mentioned:
* Compare data with snapshot as Bryan suggested (drawback -
relationship handling can be non-trivial)
* Use non-public method ObjectStore.getChanges with a custom
GraphChangeHandler to analyze the changes. The simplest and probably
I don't think I fully follow the sequence of events here, so my
comments are a bit random...
3. I commit it on the first page, so it goes to the database -
here i can see sql updates but also indication of event i think is
used for cache synchronisation
DataRowStore [DEBUG]
with singleKeyValue of
wrong data type? Does anyone depend on this behavior?
Damir
- Original Message
From: Andrus Adamchik [EMAIL PROTECTED]
To: cayenne-user@incubator.apache.org
Sent: Thursday, 9 November, 2006 11:24:38 PM
Subject: Re: Nested data context problems
I don't think I fully
As Ari just mentioned, JGroups site is located here:
http://www.jgroups.org
Cayenne has built in support for using JGroups as a provider for
cache synchronization. You can configure it in the Modeler:
* Check Remote Change Notifications for the DataDomain
* Click the Configure button next
I renamed this part of the thread since it is about a different
thing. Andreas was talking about traditional Cayenne applications
accessing the DB, while Ari is talking about ROP. Things are
significantly different between the two. If we get deeper into
technical details here, I also
Looks like you need to synchronize local databases rather than
DataContexts (which would be a secondary concern in this situation).
Synchronzing contexts (the default implementation at least) only
works if all of them are connected to the same database. I.e. if DC1
in APP1 commits its
Also take a look at nested DataContexts. In desktop apps they are
much more useful than in web apps, e.g. for things like nested
dialogs, where you need to save or cancel dialog input without saving
to the database.
Andrus
On Nov 15, 2006, at 8:53 AM, Michael Gentry wrote:
Back in the
Yeah, you either flatten a relationship or you don't. A mix of
overlapping relationships would require manual maintenance.
Andrus
On Nov 17, 2006, at 8:45 AM, Michael Gentry wrote:
I've not flattened relationships in Cayenne yet, but this could be a
bug/glitch (or a design choice). I went
Yeah, at the moment for the relationships to work, objects have to be
registered with DataContext. In 3.0 we will likely be working on ways
to attach unregistered graphs to the DataContext, but as of now
this feature is not there yet.
Andrus
On Nov 25, 2006, at 10:44 AM, Tomi NA wrote:
Yeah, sometimes quiet Saturday afternoons is the only time left to
hack Cayenne :-)
Andrus
On Nov 25, 2006, at 1:05 PM, Tomi NA wrote:
2006/11/25, Andrus Adamchik [EMAIL PROTECTED]:
Yeah, at the moment for the relationships to work, objects have to be
registered with DataContext. In 3.0
Zvonimir Spajic just sent me a note about a Cayenne-based application
his company wrote for Unilever Germany (according to Wikipedia
Unilever is a 50 billion USD company owning a bunch of consumer brands).
Very cool - thanks for the information. I put it on our success
stories page.
I should plug my usual check out 3.0 lifecycle callbacks mantra :-)
http://cwiki.apache.org/CAYDOC/lifecycle-callbacks.html
of course to get this functionality, you'd need to build Cayenne from
SVN. Hopefully we'll restore the nightly builds someday. And even
better - graduate from Apache
Actually IIRC we did allow to do arbitrary modifications to objects
within validate* at some point. And checking the code, I see where
you getting this exception now.
Could you please submit a bug report? It should be fairly easy to fix
it (although it will add a bit of overhead on commit,
I just checked in the fix. Also I described in the docs how
validation should behave when user methods have side effects:
http://cwiki.apache.org/CAYDOC/dataobject-validation.html
Andrus
On Nov 27, 2006, at 8:23 PM, Bryan Lewis wrote:
Thanks! I entered an issue CAY-712.
Andrus Adamchik
Hmm... I'd say Cayenne should be smarter about this case. Could you
please open a bug report?
In the meantime you may have to manually break relationship cycles
before deleting objects. E.g.:
ti.setToOneTarget(room, null, false);
Andrus
On Nov 29, 2006, at 1:48 AM, Peter wrote:
Hallo!
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