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diff --git a/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/representation/StringRepresentation2.java b/bundles/org.simantics.layer0.utils/src/org/simantics/layer0/utils/representation/StringRepresentation2.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.layer0.utils.representation;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.exception.DatabaseException;
+
+/**
+ * An interface for fetching string representations for a resource. Also
+ * supports handling of vector-valued resources.
+ * 
+ * @author Tuukka Lehtonen
+ */
+public interface StringRepresentation2 {
+
+    /**
+     * @return a string representation of the underlying resource
+     */
+    String get(ReadGraph g) throws DatabaseException;
+
+    /**
+     * If the underlying resource contains a value, this method can be used
+     * retrieve its array size.
+     * 
+     * @return -1 if there is no value, >= 0 otherwise.
+     */
+    int getArraySize(ReadGraph g) throws DatabaseException;
+
+    /**
+     * If the underlying resource contains a value, this method can be used to
+     * get a string representation of one of its indices.
+     * 
+     * @param index
+     * @return
+     */
+    String get(ReadGraph g, int index) throws DatabaseException;
+
+    /**
+     * If the underlying resource contains a value, this method can be used to
+     * get a string representation of the specified sequential range of indices.
+     * 
+     * @param start
+     * @param size
+     * @return
+     */
+    String get(ReadGraph g, int start, int size) throws DatabaseException;
+
+}