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diff --git a/bundles/org.simantics.ui/src/org/simantics/ui/workbench/ResourceEditorInputFactory2.java b/bundles/org.simantics.ui/src/org/simantics/ui/workbench/ResourceEditorInputFactory2.java
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+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.ui.workbench;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.ui.IElementFactory;
+import org.eclipse.ui.IMemento;
+import org.simantics.utils.ui.ErrorLogger;
+import org.simantics.utils.ui.workbench.StringMemento;
+
+/**
+ * Factory for restoring a <code>ResourceEditorInput2</code>. The stored
+ * representation of a <code>ResourceEditorInput2</code> remembers a reference
+ * to the input resource, which is a string ID, a model URI and an <a
+ * href="https://www.simantics.org/wiki/index.php/Terminology#R">RVI</a>.
+ * 
+ * <p>
+ * The workbench will automatically create instances of this class as required.
+ * It is not intended to be instantiated or subclassed by the client.
+ * </p>
+ */
+public class ResourceEditorInputFactory2 implements IElementFactory {
+    /**
+     * Factory id. The workbench plug-in registers a factory by this name
+     * with the "org.eclipse.ui.elementFactories" extension point.
+     */
+    private static final String ID_FACTORY = "org.simantics.ui.workbench.resourceEditorInputFactory2"; //$NON-NLS-1$
+
+    /**
+     */
+    public static final String TAG_RESOURCE_ID = ResourceEditorInputFactory.TAG_RESOURCE_ID; //$NON-NLS-1$
+
+    /**
+     */
+    public static final String TAG_EDITOR_ID = ResourceEditorInputFactory.TAG_EDITOR_ID; //$NON-NLS-1$
+
+    /**
+     * 
+     */
+    public static final String TAG_MODEL_ID = "modelId";
+
+    /**
+     * 
+     */
+    public static final String TAG_RVI = "rvi";
+
+    /** Tag ID for node that contains external data */
+    public static final String TAG_EXTERNAL_MEMENTO_ID = "external"; //$NON-NLS-1$
+
+    /**
+     * Creates a new factory.
+     */
+    public ResourceEditorInputFactory2() {
+    }
+
+    /* (non-Javadoc)
+     * Method declared on IElementFactory.
+     */
+    @Override
+    public IAdaptable createElement(IMemento memento) {
+        // Get the resource id array.
+        IMemento[] children = memento.getChildren(TAG_RESOURCE_ID);
+        if (children.length != 1)
+            return null;
+
+        List<String> ids = new ArrayList<String>();
+        for (IMemento child : children)
+            ids.add(child.getTextData());
+
+        String editorId = memento.getString(TAG_EDITOR_ID);
+        String modelId = memento.getString(TAG_MODEL_ID);
+        String rvi = memento.getString(TAG_RVI);
+
+        try {
+            ResourceEditorInput2 result = new ResourceEditorInput2(editorId, ids.iterator().next(), modelId, rvi);
+
+            // Read external persistent memento
+            String externalMementoStr = memento.getString(TAG_EXTERNAL_MEMENTO_ID);
+            if (externalMementoStr != null) {
+                StringMemento sm = new StringMemento(externalMementoStr);
+                sm.writeToMemento(result.getPersistentStore());
+            }
+            return result;
+        } catch (NumberFormatException e) {
+            return null;
+        } catch (IllegalArgumentException e) {
+            ErrorLogger.defaultLogError(e);
+            return null;
+        }
+    }
+
+    /**
+     * Returns the element factory id for this class.
+     * 
+     * @return the element factory id
+     */
+    public static String getFactoryId() {
+        return ID_FACTORY;
+    }
+
+}