| [EMF Forms] Cannot edit models in Forms [message #1710176] |
Mon, 05 October 2015 08:07  |
 Hauke Fuhrmann
Messages: 30
Registered: January 2015 |
Member |
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Hi there,
I'm doing my first steps with EMF-Forms and have some problems with the
e4-Example application.
I adapted the code a little bit to support my own model (Xtext based)
and in the Part I set a correct EMF-Model that I loaded from a EMF
resource (actually loaded from an Xtext parsed file).
So far so good, my contents is correctly shown in the forms-editor.
Below is the code.
The problem is that I cannot change the model. If I manually edit any
String-Field in the editor, the change is immediately discarded when I
close and reopen that view. If I add an object to a list I get an NPE
like the one below.
Did I miss anything to enable edit support?
Cheers,
Hauke
EList<EObject> input;
@PostConstruct
public void createComposite(Composite parent) {
this.parent = parent;
content = new Composite(parent, SWT.NONE);
try {
content.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_WHITE));
content.setLayout(GridLayoutFactory.fillDefaults().margins(10,
10).create());
content.setLayoutData(GridDataFactory.fillDefaults().create());
if (input == null || input.isEmpty())
return;
final ViewModelContext vmc =
ViewModelContextFactory.INSTANCE.createViewModelContext(
ViewProviderHelper.getView(input.get(0), null), input.get(0), new
DefaultReferenceService());
ECPSWTViewRenderer.INSTANCE.render(content, vmc);
content.layout();
} catch (final ECPRendererException e) {
e.printStackTrace();
}
parent.layout();
}
java.lang.NullPointerException
at
org.eclipse.emf.ecp.internal.edit.ECPControlHelper.addModelElementInReference(ECPControlHelper.java:44)
at
org.eclipse.emf.ecp.ui.view.swt.DefaultReferenceService.addNewModelElements(DefaultReferenceService.java:120)
at
org.eclipse.emf.ecp.view.internal.control.multireference.MultiReferenceSWTRenderer.handleAddNew(MultiReferenceSWTRenderer.java:428)
at
org.eclipse.emf.ecp.view.internal.control.multireference.MultiReferenceSWTRenderer$2.widgetSelected(MultiReferenceSWTRenderer.java:269)
at
org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4362)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1113)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4180)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3769)
at
org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337)
at
org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018)
at
org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156)
at
org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:159)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
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:669)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608)
at org.eclipse.equinox.launcher.Main.run(Main.java:1515)
at org.eclipse.equinox.launcher.Main.main(Main.java:1488)
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