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Home » Modeling » EMF » [CDO / Dawn] How to programmatically delete d diagram created with dawn
[CDO / Dawn] How to programmatically delete d diagram created with dawn [message #558440] Sun, 12 September 2010 21:00 Go to next message
Christian Hager is currently offline Christian HagerFriend
Messages: 53
Registered: July 2009
Location: Germany
Member
Hello everyone,

I'm currently trying to develop some code that programmatically deletes a diagram created with cdo and dawn. Unfortunately up to now I could not find out how to accomplish this task.

Are the any samples where something like this is done? Or maybe someone can point me to a place in code where something similar is done.

Thanks in advance for any help.

C. Hager

[Updated on: Sun, 12 September 2010 21:02]

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Re: How to programmatically delete d diagram created with dawn [message #558466 is a reply to message #558440] Mon, 13 September 2010 07:11 Go to previous messageGo to next message
Eike Stepper is currently offline Eike StepperFriend
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Hi Christian,

In the future please prefix your Dawn questions with [CDO] or [CDO/Dawn] so that it catches the right eyes ;-)

The expert for Dawn is of course Martin, but have you tried to delete the diagram resource in the CDO Sessions view?

Cheers
/Eike

Contact: http://www.esc-net.de Blogger <http://thegordian.blogspot.com>Twitter <http://twitter.com/eikestepper>Linkedin <http://de.linkedin.com/in/eikestepper>Xing <http://www.xing.com/profile/Eike_Stepper>
Article: What exactly is inside that p2 repository? < http://thegordian.blogspot.com/2010/05/what-exactly-is-insid e-that-p2.html>

I'm going to Eclipse Summit Europe 2010 <http://www.eclipsesummit.org/>


Am 12.09.2010 23:01, schrieb Christian Hager:
> Hello everyone,
>
> I'm currently trying to develop some code that programmatically deletes a diagram created with cdo and dawn. Unfortunately up to now I could not find out how to accomplish this task.
>
> Are the any samples where something like this is done? Or maybe someone can point me to a place in code where something similar is done.
>
> Thanks in advance for any help.
>
> C. Hager

--------------010005030001000805000700
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boundary="------------020804000907060900050304"


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Hi Christian,<br>
<br>
In the future please prefix your Dawn questions with [CDO] or
[CDO/Dawn] so that it catches the right eyes ;-)<br>
<br>
The expert for Dawn is of course Martin, but have you tried to
delete the diagram resource in the CDO Sessions view?<br>
<br>
<!--WISESTAMP_SIG_86574_START--><span style="color: black;">
<div dir="ltr">
<div>Cheers<br>
/Eike<br>
<br>
</div>
<div style="padding: 5px 0pt; font-family: arial,sans-serif;
font-size: 13.3px;"><span style="color: gray;">Contact: <a
href="http://www.esc-net.de">http://www.esc-net.de</a></span>
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2px; color: blue; font-size: 10pt;" _service=""><img
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<div style="color: gray; font-size: 13.3px; padding-bottom:
5px;">Article: <span style="color: blue; text-decoration:
underline;"><a
href=" http://thegordian.blogspot.com/2010/05/what-exactly-is-insid e-that-p2.html"
undefined="">What exactly is inside that p2 repository?</a></span></div>
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Am 12.09.2010 23:01, schrieb Christian Hager:<br>
<blockquote cite="mid:i6jf2e$p4d$1@build.eclipse.org" type="cite">Hello
everyone,
<br>
<br>
I'm currently trying to develop some code that programmatically
deletes a diagram created with cdo and dawn. Unfortunately up to
now I could not find out how to accomplish this task.
<br>
<br>
Are the any samples where something like this is done? Or maybe
someone can point me to a place in code where something similar is
done.
<br>
<br>
Thanks in advance for any help.
<br>
<br>
C. Hager
<br>
</blockquote>
</body>
</html>

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--------------020804000907060900050304--

--------------010005030001000805000700--


Re: How to programmatically delete d diagram created with dawn [message #558649 is a reply to message #558466] Mon, 13 September 2010 18:57 Go to previous messageGo to next message
Martin Fluegge is currently offline Martin FlueggeFriend
Messages: 141
Registered: July 2009
Senior Member
Hi Christian,

a Dawn resource is actually nothing but an ordinary CDOResource. So you
can delete it programmatically as any CDOResource be calling
resource.delete(). Do not forget to activate the legacy mode as shown in
the snipped below.

-------------------------
....
CDOUtil.setLegacyModeDefault(true);

CDOSession session = configuration.openSession();
CDOTransaction transaction = session.openTransaction();
CDOResource resource = transaction.getResource("/default.xxx_diagram");

try
{
resource.delete(Collections.EMPTY_MAP);
}
catch (IOException e)
{
throw new RuntimeException(e);
}

transaction.commit();
transaction.close();
session.close();
-------------------------

Cheers,

Martin

Am 13.09.2010 09:11, schrieb Eike Stepper:
> Hi Christian,
>
> In the future please prefix your Dawn questions with [CDO] or [CDO/Dawn] so that
> it catches the right eyes ;-)
>
> The expert for Dawn is of course Martin, but have you tried to delete the
> diagram resource in the CDO Sessions view?
>
> Cheers
> /Eike
>
> Contact: http://www.esc-net.de Blogger <http://thegordian.blogspot.com>Twitter
> <http://twitter.com/eikestepper>Linkedin
> <http://de.linkedin.com/in/eikestepper>Xing
> <http://www.xing.com/profile/Eike_Stepper>
> Article: What exactly is inside that p2 repository?
> < http://thegordian.blogspot.com/2010/05/what-exactly-is-insid e-that-p2.html>
>
> I'm going to Eclipse Summit Europe 2010 <http://www.eclipsesummit.org/>
>
>
> Am 12.09.2010 23:01, schrieb Christian Hager:
>> Hello everyone,
>>
>> I'm currently trying to develop some code that programmatically deletes a
>> diagram created with cdo and dawn. Unfortunately up to now I could not find
>> out how to accomplish this task.
>>
>> Are the any samples where something like this is done? Or maybe someone can
>> point me to a place in code where something similar is done.
>>
>> Thanks in advance for any help.
>>
>> C. Hager
Re: [CDO / Dawn] How to programmatically delete d diagram created with dawn [message #558669 is a reply to message #558440] Mon, 13 September 2010 20:58 Go to previous messageGo to next message
Christian Hager is currently offline Christian HagerFriend
Messages: 53
Registered: July 2009
Location: Germany
Member
Hi Martin,

actually the snippet was exactly what I was trying. But when I try to delete the resource I get the following exception so I was thinking I'm not doing it the right way.

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.RangeCheck(ArrayList.java:547)
	at java.util.ArrayList.set(ArrayList.java:337)
	at org.eclipse.emf.cdo.spi.common.revision.BaseCDORevision.set(BaseCDORevision.java:484)
	at org.eclipse.emf.internal.cdo.CDOStore.set(CDOStore.java:345)
	at org.eclipse.emf.internal.cdo.CDOLegacyWrapper.setOppositeReference(CDOLegacyWrapper.java:232)
	at org.eclipse.emf.internal.cdo.CDOLegacyWrapper.cdoInternalPostDetach(CDOLegacyWrapper.java:215)
	at org.eclipse.emf.internal.cdo.CDOStateMachine.detach(CDOStateMachine.java:280)
	at org.eclipse.emf.cdo.eresource.impl.CDOResourceImpl.detached(CDOResourceImpl.java:982)
	at org.eclipse.emf.cdo.eresource.impl.CDOResourceImpl$ContentsCDOList.inverseRemove(CDOResourceImpl.java:1224)
	at org.eclipse.emf.common.notify.impl.DelegatingNotifyingListImpl.remove(DelegatingNotifyingListImpl.java:731)
	at org.eclipse.emf.common.util.DelegatingEList.remove(DelegatingEList.java:506)
	at org.eclipse.emf.cdo.eresource.impl.CDOResourceImpl.delete(CDOResourceImpl.java:936)
	at de.chager.sandbox.test2.commands.handlers.DeleteDiagramHandler.execute(DeleteDiagramHandler.java:41)
	at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:293)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)
	at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169)
	at org.eclipse.ui.internal.handlers.SlaveHandlerService.executeCommand(SlaveHandlerService.java:241)
	at org.eclipse.ui.menus.CommandContributionItem.handleWidgetSelection(CommandContributionItem.java:820)
	at org.eclipse.ui.menus.CommandContributionItem.access$19(CommandContributionItem.java:806)
	at org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(CommandContributionItem.java:796)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3776)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1367)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1390)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375)
	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1187)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3622)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3277)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at de.chager.sandbox.test2.app.DawnDemoApplication.start(DawnDemoApplication.java:20)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1383)


As I just found out the issue seems to be related to the contents of my diagram. Deleting the diagram resource works fine if I empty the diagram before I delete it.

Do you have any idea what the problem might be? Btw I'm using CDO Version: 4.0.0.v20100913-0534 and Dawn Version: 1.0.0.v20100901-2022 if that helps.


Cheers,
Christian
Re: [CDO / Dawn] How to programmatically delete d diagram created with dawn [message #558707 is a reply to message #558669] Tue, 14 September 2010 07:17 Go to previous messageGo to next message
Martin Fluegge is currently offline Martin FlueggeFriend
Messages: 141
Registered: July 2009
Senior Member
Hi Christian,

o.k. your exception looks familiar. It seems that Bug 323308 (https://bugs.eclipse.org/bugs/show_bug.cgi?id=323308) popped up again.

I guess your diagram contains some bi-directional references, e.g. some nodes connected to edges or something similar Wink

Could you please try the attached patch and tell me whether it worked or not? You can comment on the bugzilla if you like.

Cheers,

Martin
Re: [CDO / Dawn] How to programmatically delete d diagram created with dawn [message #558927 is a reply to message #558440] Tue, 14 September 2010 22:09 Go to previous message
Christian Hager is currently offline Christian HagerFriend
Messages: 53
Registered: July 2009
Location: Germany
Member
Hi Martin,

Yes my diagram did indeed contain some bi-directional references. The patch you mentioned resolved my issue.

Thanks for your help.

Cheers,
Christian
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