|
| Re: Abstract class with InstanceTypeName and Reflective Serialization [message #633579 is a reply to message #633563] |
Mon, 18 October 2010 12:48  |
 Ed Merks
Messages: 33141
Registered: July 2009 |
Senior Member |
|
|
Markus,
No, it's a limitation. The runtime needs to be able to create an
instance that implements IAdaptable so unless there exists a generated
class which does that, there's no possibility to create valid instance.
Markus Herrmannsdoerfer wrote:
> Hi *,
>
> I have a problem with reflectively deserializing a model that conforms
> to a metamodel that contains an abstract class with InstanceTypeName
> set. Here is a minimal example:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <ecore:EPackage xmi:version="2.0"
> xmlns:xmi="http://www.omg.org/XMI"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="javatest"
> nsURI="javatest" nsPrefix="javatest">
> <eClassifiers xsi:type="ecore:EClass" name="IAdaptable"
> instanceClassName="org.eclipse.core.runtime.IAdaptable"
> abstract="true" interface="true"/>
> <eClassifiers xsi:type="ecore:EClass" name="Node"
> eSuperTypes="#//IAdaptable"/>
> </ecore:EPackage>
>
> So there is a class "Node" that extends an interface "IAdaptable"
> which has an InstanceTypeName. While I can create and open models that
> are built with the generated editor, I cannot reflectively create and
> open models due to the exception that is shown below. If I make the
> interface non-abstract, then it works fine. Is this a bug?
> Thanks for your answer.
> Cheers,
>
> Markus
>
>
> java.lang.IllegalArgumentException: The class 'IAdaptable' is not a
> valid classifier
> at
> org.eclipse.emf.ecore.impl.EFactoryImpl.create(EFactoryImpl. java:235)
> at
> org.eclipse.emf.ecore.impl.EFactoryImpl.create(EFactoryImpl. java:243)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.createObject(XM LHelperImpl.java:891)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.createObject(XM LHelperImpl.java:928)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFa ctory(XMLHandler.java:2185)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType (XMLHandler.java:1330)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XM LHandler.java:1468)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XML Handler.java:1019)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMI Handler.java:83)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHa ndler.java:1001)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHa ndler.java:712)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMIHandler.startElement(XMIHa ndler.java:169)
>
> at
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser .startElement(AbstractSAXParser.java:501)
>
> at
> com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocume ntParser.emptyElement(AbstractXMLDocumentParser.java:179)
>
> at
> com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator. emptyElement(XMLDTDValidator.java:788)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentS cannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.j ava:1343)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerIm pl$ContentDriver.scanRootElementHook(XMLDocumentScannerImpl. java:1318)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentS cannerImpl$FragmentContentDriver.next(XMLDocumentFragmentSca nnerImpl.java:3103)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerIm pl$PrologDriver.next(XMLDocumentScannerImpl.java:922)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerIm pl.next(XMLDocumentScannerImpl.java:648)
>
> at
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentS cannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java: 511)
>
> at
> com.sun.org.apache.xerces.internal.parsers.XML11Configuratio n.parse(XML11Configuration.java:808)
>
> at
> com.sun.org.apache.xerces.internal.parsers.XML11Configuratio n.parse(XML11Configuration.java:737)
>
> at
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(X MLParser.java:119)
>
> at
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser .parse(AbstractSAXParser.java:1205)
>
> at
> com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSA XParser.parse(SAXParserImpl.java:522)
>
> at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl. java:181)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLRes ourceImpl.java:180)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(Resour ceImpl.java:1494)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(Resour ceImpl.java:1282)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLo ad(ResourceSetImpl.java:255)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLo adHelper(ResourceSetImpl.java:270)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResou rce(ResourceSetImpl.java:397)
>
> at
> org.eclipse.emf.ecore.presentation.EcoreEditor.createModelGe n(EcoreEditor.java:1062)
>
> at
> org.eclipse.emf.ecore.presentation.EcoreEditor.createModel(E coreEditor.java:1082)
>
> at
> org.eclipse.emf.ecore.presentation.EcoreEditor.createPages(E coreEditor.java:1147)
>
> at
> org.eclipse.ui.part.MultiPageEditorPart.createPartControl(Mu ltiPageEditorPart.java:357)
>
> at
> org.eclipse.ui.internal.EditorReference.createPartHelper(Edi torReference.java:662)
>
> at
> org.eclipse.ui.internal.EditorReference.createPart(EditorRef erence.java:462)
>
> at
> org.eclipse.ui.internal.WorkbenchPartReference.getPart(Workb enchPartReference.java:595)
>
> at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:31 3)
> at
> org.eclipse.ui.internal.presentations.PresentablePart.setVis ible(PresentablePart.java:180)
>
> at
> org.eclipse.ui.internal.presentations.util.PresentablePartFo lder.select(PresentablePartFolder.java:270)
>
> at
> org.eclipse.ui.internal.presentations.util.LeftToRightTabOrd er.select(LeftToRightTabOrder.java:65)
>
> at
> org.eclipse.ui.internal.presentations.util.TabbedStackPresen tation.selectPart(TabbedStackPresentation.java:473)
>
> at
> org.eclipse.ui.internal.PartStack.refreshPresentationSelecti on(PartStack.java:1256)
>
> at
> org.eclipse.ui.internal.PartStack.setSelection(PartStack.jav a:1209)
> at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:16 08)
> at org.eclipse.ui.internal.PartStack.add(PartStack.java:499)
> at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103 )
> at org.eclipse.ui.internal.PartStack.add(PartStack.java:485)
> at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112 )
> at
> org.eclipse.ui.internal.EditorSashContainer.addEditor(Editor SashContainer.java:63)
>
> at
> org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorA reaHelper.java:225)
>
> at
> org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAre aHelper.java:213)
>
> at
> org.eclipse.ui.internal.EditorManager.createEditorTab(Editor Manager.java:778)
>
> at
> org.eclipse.ui.internal.EditorManager.openEditorFromDescript or(EditorManager.java:677)
>
> at
> org.eclipse.ui.internal.EditorManager.openEditor(EditorManag er.java:638)
> at
> org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched( WorkbenchPage.java:2854)
>
> at
> org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(Workben chPage.java:2762)
>
> at
> org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPag e.java:2754)
> at
> org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.j ava:2705)
> at
> org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator .java:70)
> at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPa ge.java:2701)
> at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPa ge.java:2685)
> at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPa ge.java:2668)
> at
> edu.tum.cs.cope.migration.ui.LoadModelHandler.loadModel(Load ModelHandler.java:89)
>
> at
> edu.tum.cs.cope.migration.ui.LoadModelHandler.loadEcoreModel (LoadModelHandler.java:68)
>
> at
> edu.tum.cs.cope.migration.ui.LoadModelHandler.run(LoadModelH andler.java:42)
>
> at
> edu.tum.cs.cope.migration.ui.MigratorHandlerBase.execute(Mig ratorHandlerBase.java:63)
>
> at
> org.eclipse.ui.internal.handlers.HandlerProxy.execute(Handle rProxy.java:294)
>
> at
> org.eclipse.core.commands.Command.executeWithChecks(Command. java:476)
> at
> org.eclipse.core.commands.ParameterizedCommand.executeWithCh ecks(ParameterizedCommand.java:508)
>
> at
> org.eclipse.ui.internal.handlers.HandlerService.executeComma nd(HandlerService.java:169)
>
> at
> org.eclipse.ui.internal.handlers.SlaveHandlerService.execute Command(SlaveHandlerService.java:241)
>
> at
> org.eclipse.ui.internal.handlers.SlaveHandlerService.execute Command(SlaveHandlerService.java:241)
>
> at
> org.eclipse.ui.menus.CommandContributionItem.handleWidgetSel ection(CommandContributionItem.java:770)
>
> at
> org.eclipse.ui.menus.CommandContributionItem.access$10(Comma ndContributionItem.java:756)
>
> at
> org.eclipse.ui.menus.CommandContributionItem$5.handleEvent(C ommandContributionItem.java:746)
>
> 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:3910)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3503)
> at
> org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2405)
> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
> at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:22 21)
> at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
> at
> org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332)
>
> at
> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:493)
>
> 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:194)
>
> 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:368)
>
> at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:179)
>
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39)
>
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl.java:25)
>
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java: 559)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
Ed Merks
Professional Support: https://www.macromodeling.com/
|
|
|
Powered by
FUDForum. Page generated in 0.02681 seconds
] 
Search
Help
Register
Login
Home
