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diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/SimanticsClipboardImpl.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/SimanticsClipboardImpl.java
new file mode 100644
index 000000000..c4f392901
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/util/SimanticsClipboardImpl.java
@@ -0,0 +1,54 @@
+/*******************************************************************************
+ * 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.util;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Set;
+
+import org.simantics.utils.datastructures.collections.CollectionUtils;
+
+final public class SimanticsClipboardImpl implements SimanticsClipboard, SimanticsClipboardBuilder {
+	
+	final private ArrayList<Set<Representation>> objects = new ArrayList<Set<Representation>>(); 
+
+	public SimanticsClipboardImpl() {
+	}
+	
+	public SimanticsClipboardImpl(Representation representation) {
+		addContent(Collections.singleton(representation));
+	}
+
+	public SimanticsClipboardImpl(Representation ... representation) {
+		addContent(CollectionUtils.toSet(representation));
+	}
+
+	@Override
+	public Collection<Set<Representation>> getContents() {
+		return objects;
+	}
+
+	@Override
+	public void addContent(Set<Representation> content) {
+		objects.add(content);
+	}
+	
+	static SimanticsClipboard single(Representation representation) {
+		return new SimanticsClipboardImpl(representation);
+	}
+
+	static SimanticsClipboard make(Representation ... representations) {
+		return new SimanticsClipboardImpl(representations);
+	}
+
+}