Re: reverse engineering partially changed schema

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Tue May 12 2009 - 10:06:56 EDT

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    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 <
    > tobias.schoessle..mail.com> 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 <andru..bjectstyle.org
    >> >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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