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diff --git a/org.simantics.g3d/src/org/simantics/g3d/objmap/rules/range/GetSetObjectAccessor.java b/org.simantics.g3d/src/org/simantics/g3d/objmap/rules/range/GetSetObjectAccessor.java
new file mode 100644
index 00000000..8ceda89d
--- /dev/null
+++ b/org.simantics.g3d/src/org/simantics/g3d/objmap/rules/range/GetSetObjectAccessor.java
@@ -0,0 +1,58 @@
+package org.simantics.g3d.objmap.rules.range;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import org.simantics.objmap.MappingException;
+import org.simantics.objmap.rules.range.IRangeAccessor;
+
+/**
+ * Accessor for mapped objects. Uses two methods:
+ * - Getter: returns the current object.
+ * - Setter: sets the current object. The object may be null.
+ * 
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
+ *
+ * @param <T>
+ */
+public class GetSetObjectAccessor<T>  implements IRangeAccessor<T> {
+	
+	private Method getter;
+	private Method setter;
+	
+	
+	public GetSetObjectAccessor(Method getter, Method setter) {
+		this.getter = getter;
+		this.setter = setter;
+		
+	}
+	
+	@SuppressWarnings("unchecked")
+	public T get(Object element) throws org.simantics.objmap.MappingException {
+		try {
+			return (T) getter.invoke(element);
+		} catch (IllegalArgumentException e) {
+			throw new MappingException(e);
+		} catch (IllegalAccessException e) {
+			throw new MappingException(e);
+		} catch (InvocationTargetException e) {
+			throw new MappingException(e);
+		}
+	};
+
+	@Override
+	public boolean set(Object element, T value)
+			throws MappingException {	
+		try {
+			setter.invoke(element, value);
+		} catch (IllegalArgumentException e) {
+			throw new MappingException(e);
+		} catch (IllegalAccessException e) {
+			throw new MappingException(e);
+		} catch (InvocationTargetException e) {
+			throw new MappingException(e);
+		}
+		return true;
+		
+	}
+}