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Bug 351185

Summary:

Derived containment references that uses feature maps can't be saved to store

Product:

[Modeling] EMF

Reporter:

Nikolay Kasyanov <corrmage>

Component:

cdo.core

Assignee:

Project Inbox <emf.cdo-inbox>

Status:

CLOSED WONTFIX

QA Contact:

Eike Stepper <stepper>

Severity:

major

Priority:

CC:

akafakir

Version:

4.6

Target Milestone:

---

Hardware:

OS:

Mac OS X - Carbon (unsup.)

Whiteboard:

Attachments:

Description	Flags
eclipse project with generated test model	none
used cdo server config	none
stacktrace	none
unit test	none
client patch	none
server stacktrace	none
right patch, against svn branch '4.0-maintanence'	none
patch	none
stack trace for new issue	none

Description Nikolay Kasyanov

2011-07-05 09:14:56 EDT

Build Identifier: I20110613-1736

If model has reference that uses feature map and this reference is derived (and
transient, volatile), model instances with elements in such references can not be saved to store due to exception.

Tested with db (mysql) & db4o store backends.

Reproducible: Always

Steps to Reproduce:
1. Launch CDO server.
2. From CDO ui open session, add generated package http://agentlab.ru/cdo/tests to registry.
3. Start transaction.
4. Create new resource.
5. Add Library element to resource from package http://agentlab.ru/cdo/tests.
6. Add Writer element to previously created Library element.
7. Try to save resource.

Comment 1 Nikolay Kasyanov

2011-07-05 09:16:06 EDT

Created attachment 199118 [details]
eclipse project with generated test model

Comment 2 Nikolay Kasyanov

2011-07-05 09:17:28 EDT

Created attachment 199119 [details]
used cdo server config

Comment 3 Nikolay Kasyanov

2011-07-05 09:23:12 EDT

Created attachment 199120 [details]
stacktrace

Comment 4 Nikolay Kasyanov

2011-07-13 17:41:11 EDT

Created attachment 199621 [details]
unit test

I screwed up in "steps to reproduce", you need to commit transaction after adding Library instance and only then add child items.
Wrote unit test for generated and dynamic case. To use generated model use previously attached project.

Comment 5 Nikolay Kasyanov

2011-07-13 17:42:22 EDT

I mean testcase, not unit test, of cource.

Comment 6 Nikolay Kasyanov

2011-07-15 13:49:51 EDT

Created attachment 199763 [details]
client patch

Made some fix, that possibly fixes problem on client, but raises new problem on server.
I'll attach stacktrace.

Comment 7 Nikolay Kasyanov

2011-07-15 13:58:42 EDT

Created attachment 199764 [details]
server stacktrace

To get this stacktrace simply apply change from patch and do "steps to reproduce".

looks like visitor's id not updated in library's delta.

Comment 8 Nikolay Kasyanov

2011-07-15 14:25:13 EDT

Created attachment 199767 [details]
right patch, against svn branch '4.0-maintanence'

Comment 9 Nikolay Kasyanov

2011-07-22 11:18:12 EDT

Created attachment 200208 [details]
patch

extended patch to fix server problem.
Can somebody review it?
Looks like it reveals another problem, I'll attach stack trace.

Comment 10 Nikolay Kasyanov

2011-07-22 11:25:30 EDT

Created attachment 200209 [details]
stack trace for new issue

After applying provided patch one can add Writers and Visitors to already stored Library (in terms of provided score model). After saving Library with newly added Writers and Visitors try to add more. You'll get following stack trace.

Another glitch: "delete" menu item is inactive for writers and visitors and when trying to delete library with children I got "legacy mode is not enabled" exception, though I'm using native model.

Comment 11 Eike Stepper

2012-08-14 22:55:50 EDT

Moving all open issues to 4.2. Open bugs can be ported to 4.1 maintenance after they've been fixed in master.

Comment 12 Eike Stepper

2013-06-29 12:17:08 EDT

We'll try to address open problems in 4.3 (master) first and then port fixes back to 4.2.

Comment 13 Leonid Ripeynih

2013-10-30 09:54:23 EDT

Eike, 
i've run into that problem today, with my .ecore model initially generated from XSD. 

Do you have any plans to adress it in near feature?

Comment 14 Eike Stepper

2015-07-14 02:18:29 EDT

Moving all open bugzillas to 4.5.

Comment 15 Eike Stepper

2016-07-31 01:01:21 EDT

Moving all unaddressed bugzillas to 4.6.

Comment 16 Eike Stepper

2016-09-24 01:40:55 EDT

We have no plans to support feature maps.