Thanks! We'll take a look at it.

In general, is there an overview to see the differences of the 3 versions
1.x, 2.x and 3.x?


2.0.x is exactly the same as corresponding 1.2.x, only with package names changed from org.objectstyle to org.apache. 2.0.x is great for migration from the ObjectStyle releases as it does not introduce any new functionality.

3.0, while still in development is being used in production by many companies already. We are trying to wrap up the final release soon, but there are still a few things to finish. Here is a fairly complete overview of 3.0 new features already available:

http://cayenne.apache.org/doc/guide-to-30-features.html

The list is pretty long and it has a lot of great things (useable query caching, leak free DataContext, greatly enhanced Modeler, lifecycle callbacks, more supported attribute types, including Java 5 enums, etc., etc.)

Andrus



On May 12, 2009, at 4:37 AM, Tobias Schoessler wrote:

I just downloaded 3.0. Started up the Modeler and did the same remove / reengineer / skip existing operation and I got the same empty error message
as with 1.2.

On Tue, May 12, 2009 at 9:48 AM, Tobias Schoessler <
[email protected]> wrote:

Thanks Andrus, I have postedit as

*CAY-1224 <https://issues.apache.org/jira/browse/CAY-1224>*
Andrus, 3.0 is marked in developement. Is it save to be used in production?

In general, is there an overview to see the differences of the 3 versions
1.x, 2.x and 3.x?

Tobias


On Tue, May 12, 2009 at 2:50 AM, Andrus Adamchik <[email protected] >wrote:

Hi Tobias,

This looks like a bug to me. Probably worth opening a bug report, but the easiest thing would be to upgrade to Cayenne 3.0 for instance. Chances are
this problem is fixed there already.

Andrus



On May 11, 2009, at 10:24 AM, Tobias Schoessler wrote:

Hi,

I get an error in the CayenneModeler 1.2.4 when reverse engineering my
schema partially.

CayenneModeler INFO  [Thread-13 04-27 15:02:50]
org.objectstyle.cayenne.modeler.dialog.db.DbLoaderHelper: Exception on
reverse engineering
java.lang.NullPointerException
     at

org .objectstyle .cayenne.access.DbLoader.loadDbRelationships(DbLoader.java:661)

     at
org .objectstyle.cayenne.access.DbLoader.loadDbEntities(DbLoader.java: 488)
     at

org .objectstyle .cayenne.access.DbLoader.loadDataMapFromDB(DbLoader.java:775)

     at

org .objectstyle .cayenne.access.DbLoader.loadDataMapFromDB(DbLoader.java:758)

     at

org.objectstyle.cayenne.modeler.dialog.db.DbLoaderHelper $LoadDataMapTask.execute(DbLoaderHelper.java:388)

     at

org .objectstyle .cayenne .modeler .util.LongRunningTask.internalExecute(LongRunningTask.java:251)

     at

org.objectstyle.cayenne.modeler.util.LongRunningTask $1.run(LongRunningTask.java:139)

     at java.lang.Thread.run(Unknown Source)


I have updated a portion of the schema in the database. I delete the
DbEntities and ObjEntities of the tables that were changed.

I then click reverse Engineer from database. I get popups asking whether
to
overwrite existing Objects. I click "remember my decision" and NO.

at the end I get an error popup without a message. It is just containing
the
red error icon and a title reading "Error Reengineering Database".


This error does occur also when I select not to remember my decision and
click through each popup one by one.

When reverse engineering the whole database, removing all ObjEntities and all DBEntities, before reverse engineering the error does not occur. I
have
many custom mappings redoing  the existing mapping is not really an
option.

Any help highly appreciated.

thanks,Tobias





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