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diff --git a/bundles/org.simantics.objmap2/src/org/simantics/objmap/structural/StructuralResource.java b/bundles/org.simantics.objmap2/src/org/simantics/objmap/structural/StructuralResource.java
new file mode 100644
index 000000000..857d0e4ad
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+++ b/bundles/org.simantics.objmap2/src/org/simantics/objmap/structural/StructuralResource.java
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+/*******************************************************************************
+ * Copyright (c) 2012, 2013 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.objmap.structural;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.layer0.Layer0;
+
+/**
+ * An object representing structural Resource.
+ * 
+ * 
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
+ *
+ */
+public class StructuralResource  {
+
+	private Resource resource;
+	private List<Resource> context = new ArrayList<Resource>(1);
+	
+	private Resource typeResource = null;
+	
+	public StructuralResource(Resource resource) {
+		assert(resource != null);
+		this.resource = resource;
+	}
+	public StructuralResource(ReadGraph g, Resource resource, Resource context) throws DatabaseException {
+		assert(resource != null);
+		this.resource = resource;
+		this.context.add(context);
+		resolveType(g);
+	}
+	
+	public StructuralResource(ReadGraph g, Resource resource, Resource... context) throws DatabaseException {
+		assert(resource != null);
+		this.resource = resource;
+		for (Resource r : context)
+			this.context.add(r);
+		resolveType(g);
+	}
+	
+	public StructuralResource(ReadGraph g, Resource resource, List<Resource> context) throws DatabaseException {
+		assert(resource != null);
+		this.resource = resource;
+		for (Resource r : context)
+			this.context.add(r);
+		resolveType(g); 
+	}
+	public StructuralResource(ReadGraph g, Resource resource, List<Resource> context, Resource context2) throws DatabaseException {
+		assert(resource != null);
+		this.resource = resource;
+		for (Resource r : context)
+			this.context.add(r);
+		this.context.add(context2);
+		resolveType(g);
+	}
+	
+	private void resolveType(ReadGraph g) throws DatabaseException {
+		if (this.context.contains(resource)) {
+			Layer0 l0 = Layer0.getInstance(g);
+			typeResource = g.getSingleObject(resource, l0.InstanceOf);
+		} 
+	}
+	
+	
+	/**
+	 * The Resource in the DB.
+	 * @return
+	 */
+	public Resource getResource() {
+		return resource;
+	}
+	
+	/**
+	 * Context in which this resource is accessed. Each context resource represents a structural model instance. 
+	 * @return
+	 */
+	public List<Resource> getContext() {
+		return context;
+	}
+	
+	/**
+	 * If the resource is structural model instance, this returns the type Resource. Otherwise returns null.
+	 * @return
+	 */
+	public Resource getTypeResource() {
+		return typeResource;
+	}
+	
+	/**
+	 * Returns true, if the resource is structural, 
+	 * @return
+	 */
+	public boolean isStructural() {
+		return context.size() > 0;
+	}
+	
+	/**
+	 * Returns true is the Resource is root of Structural Model instance.
+	 * In this case the resource instance is editable.
+	 * 
+	 * @return
+	 */
+	public boolean isStructuralRoot() {
+		return (context.size() == 1 && context.get(0).equals(resource));
+	}
+	
+	/**
+	 * Returns true,  the resource is structural model instance.
+	 * @return
+	 */
+	public boolean isStructuralInstance() {
+		return typeResource != null;
+	}
+	
+	@Override
+	public int hashCode() {
+		int hashCode = resource.hashCode();
+		for (Resource ctx : context)
+			hashCode += ctx.hashCode();
+		return hashCode;
+	}
+	
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == this)
+			return true;
+		if (obj == null)
+			return false;
+		if (obj.getClass() != getClass())
+			return false;
+		StructuralResource other = (StructuralResource)obj;
+		if (!resource.equals(other.resource))
+			return false;
+		if (context.size() != other.context.size())
+			return false;
+		for (int i = 0; i < context.size(); i++) {
+			if (!context.get(i).equals(other.context.get(i)))
+				return false;
+		}
+		return true;
+	}
+	
+	@Override
+	public String toString() {
+		String s = "Res: " + resource + " Context:";
+		for (Resource ctx : context) 
+			s+= " "+ ctx;
+		if (typeResource != null)
+			s+= " Type: " + typeResource;
+		return s;
+	}
+
+}