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Lost EditingDomain after "save" [message #225145]

Thu, 09 April 2009 11:29

Eclipse User

Originally posted by: jiezi506.gmail.com

I have try to share domain between multi editor for one model file, and
overwrited the DocumentProvider.createEditingDomain() to my
Registry.getEditingDomain("").

then when I edited one editor and save it .Then when I wanted to add a
Node, the error is:

org.eclipse.core.commands.ExecutionException: While executing the
operation, an exception occurred
at
org.eclipse.core.commands.operations.DefaultOperationHistory .execute(DefaultOperationHistory.java:519)
at
org.eclipse.gmf.runtime.diagram.ui.parts.DiagramCommandStack .execute(DiagramCommandStack.java:205)
at
org.eclipse.gmf.runtime.diagram.ui.parts.DiagramCommandStack .execute(DiagramCommandStack.java:168)
at
org.eclipse.gmf.runtime.diagram.ui.parts.DiagramCommandStack .execute(DiagramCommandStack.java:155)
at org.eclipse.gef.tools.AbstractTool.executeCommand(AbstractTo ol.java:399)
at
org.eclipse.gef.tools.AbstractTool.executeCurrentCommand(Abs tractTool.java:411)
at
org.eclipse.gmf.runtime.diagram.ui.tools.CreationTool.perfor mCreation(CreationTool.java:133)
at org.eclipse.gef.tools.CreationTool.handleButtonUp(CreationTo ol.java:178)
at org.eclipse.gef.tools.AbstractTool.mouseUp(AbstractTool.java :1064)
at org.eclipse.gef.EditDomain.mouseUp(EditDomain.java:263)
at
org.eclipse.gef.ui.parts.DomainEventDispatcher.dispatchMouse Released(DomainEventDispatcher.java:374)
at
org.eclipse.draw2d.LightweightSystem$EventHandler.mouseUp(Li ghtweightSystem.java:538)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListe ner.java:207)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.ja va:3823)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3422)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2384)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2348)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:22 00)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:495)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:288)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:490)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:113)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:193)
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(EclipseS tarter.java:386)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java: 549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
at org.eclipse.equinox.launcher.Main.main(Main.java:1212)
Caused by: java.lang.NullPointerException
at
org.eclipse.emf.workspace.AbstractEMFOperation.inheritedOpti ons(AbstractEMFOperation.java:240)
at
org.eclipse.emf.workspace.AbstractEMFOperation.execute(Abstr actEMFOperation.java:149)
at
org.eclipse.gmf.runtime.diagram.ui.commands.SemanticCreateCo mmand.doExecuteWithResult(SemanticCreateCommand.java:71)
at
org.eclipse.gmf.runtime.common.core.command.AbstractCommand. execute(AbstractCommand.java:135)
at
org.eclipse.gmf.runtime.common.core.command.CompositeCommand .doExecuteWithResult(CompositeCommand.java:403)
at
org.eclipse.gmf.runtime.common.core.command.AbstractCommand. execute(AbstractCommand.java:135)
at
org.eclipse.gmf.runtime.common.core.command.CompositeCommand .doExecuteWithResult(CompositeCommand.java:403)
at
org.eclipse.gmf.runtime.common.core.command.AbstractCommand. execute(AbstractCommand.java:135)
at
org.eclipse.gmf.runtime.common.core.command.CompositeCommand .doExecuteWithResult(CompositeCommand.java:403)
at
org.eclipse.gmf.runtime.common.core.command.AbstractCommand. execute(AbstractCommand.java:135)
at
org.eclipse.core.commands.operations.DefaultOperationHistory .execute(DefaultOperationHistory.java:511)
.... 37 more

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Re: Lost EditingDomain after "save" [message #225172 is a reply to message #225145]

Thu, 09 April 2009 12:14

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello jiezi,

Looks like the reason is: TransactionUtil.getEditingDomain() returns null
for EObject corresponding to the diagram element/domain element. The reason,
I suppose, is: eObject.eResource() == null. This means all the EObjects on
a diagram was unloaded after the save..

looks like by modifying ???DocumentProvider you've broken refresh process
(new input will not be correctly set for diagram editor or content of the
model will be unloaded by one of listeners in ???DocumentProvider).

-----------------
Alex Shatalin

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