Hi,
I am trying to dynamically update one of the datamapper GMF editparts using
the following [1] code snippet. This throws an IllegalStateException [2].
Any idea on how I can update the resource set in run-time?
[1]
TreeNode graphicalTreeModel = rootDiagram.getInput().getTreeNode().get(0);
TreeNode treeNodeNew = DataMapperFactory.eINSTANCE.createTreeNode();
treeNodeNew.setName("Test node");
treeNodeNew.setLevel(2);
treeNodeNew.setSchemaDataType(SchemaDataType.INT);
graphicalTreeModel.getNode().add(treeNodeNew);
[2]
!MESSAGE Cannot modify resource set without a write transaction
!STACK 0
java.lang.IllegalStateException: Cannot modify resource set without a write
transaction
at
org.eclipse.emf.transaction.impl.TransactionChangeRecorder.assertWriting(TransactionChangeRecorder.java:348)
at
org.eclipse.emf.transaction.impl.TransactionChangeRecorder.appendNotification(TransactionChangeRecorder.java:302)
at
org.eclipse.emf.transaction.impl.TransactionChangeRecorder.processObjectNotification(TransactionChangeRecorder.java:284)
at
org.eclipse.emf.transaction.impl.TransactionChangeRecorder.notifyChanged(TransactionChangeRecorder.java:240)
at
org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
at
org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1027)
at
org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1032)
at
org.eclipse.emf.common.notify.impl.NotifyingListImpl.addUnique(NotifyingListImpl.java:299)
at org.eclipse.emf.common.util.AbstractEList.add(AbstractEList.java:303)
at
dataMapper.diagram.custom.action.AddNewRecordAction.addNewRecordToModel(AddNewRecordAction.java:119)
at
dataMapper.diagram.custom.action.AddNewRecordAction.doRun(AddNewRecordAction.java:99)
at
org.eclipse.gmf.runtime.common.ui.action.AbstractActionHandler.run(AbstractActionHandler.java:359)
at
org.eclipse.gmf.runtime.common.ui.action.ActionManager$1.run(ActionManager.java:225)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at
org.eclipse.gmf.runtime.common.ui.action.ActionManager.run(ActionManager.java:223)
at
org.eclipse.gmf.runtime.common.ui.action.AbstractActionHandler.runWithEvent(AbstractActionHandler.java:377)
at
org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at
org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at
org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1392)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3742)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3363)
at
org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at
org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997)
at
org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:140)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:611)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
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:354)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Thanks,
--
*Gayan Kaushalya Yalpathwala*
Software Engineer
WSO2 Inc.; http://wso2.com
lean.enterprise.middleware
mobile: +94 71 8682704 <http://asia14.wso2con.com/>
<http://asia14.wso2con.com/>
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