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diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/PossibleActiveModelValuation.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/PossibleActiveModelValuation.java
new file mode 100644
index 000000000..7cc8182ee
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/PossibleActiveModelValuation.java
@@ -0,0 +1,69 @@
+/*******************************************************************************
+ * 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.db.layer0.request;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.exception.DebugException;
+import org.simantics.db.common.request.BinaryRead;
+import org.simantics.db.exception.AdaptionException;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.ResourceNotFoundException;
+import org.simantics.db.layer0.adapter.Valuations;
+
+public class PossibleActiveModelValuation extends BinaryRead<Resource, String, Resource> {
+
+    public PossibleActiveModelValuation(Resource model) {
+        super(model, "");
+    }
+
+    public PossibleActiveModelValuation(Resource resource, String suffix) {
+        super(resource, suffix);
+    }
+
+    @Override
+    public Resource perform(ReadGraph graph) throws DatabaseException {
+    	
+        try {
+
+        	String valuationName = null;
+        	
+        	Valuations valuations = graph.adapt(parameter, Valuations.class);
+
+        	String valuation = graph.syncRequest(new PossibleActiveExperimentPath(parameter));
+        	if(valuation != null) valuationName = valuation;
+
+        	if (valuationName == null) {
+                valuationName = "BaseRealization";
+            }
+
+//        	System.out.println("possibleactivemodelvaluations uses valuation " + valuationName + " parameter2 = " + parameter2);
+        	
+            return valuations.getValue(graph, null, valuationName, parameter2);
+            
+        } catch (ResourceNotFoundException e) {
+            if (DebugException.DEBUG)
+                e.printStackTrace();
+            return null;
+        } catch (AdaptionException e) {
+            if (DebugException.DEBUG)
+                e.printStackTrace();
+            return null;
+        } catch (Throwable e) {
+            if (DebugException.DEBUG)
+                e.printStackTrace();
+            return null;
+        }
+
+    }
+
+}