--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2013 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.objmap.graph.rules.range;\r
+\r
+import java.lang.reflect.Field;\r
+\r
+import org.simantics.objmap.exceptions.MappingException;\r
+\r
+\r
+/**\r
+ * Accesses the given field of the element.\r
+ * @author Hannu Niemist�\r
+ */\r
+public class FieldAccessorWithDefault<Range,T> extends FieldAccessor<Range,T> {\r
+ \r
+ T defaultValue;\r
+\r
+ public FieldAccessorWithDefault(Field field, T defaultValue) {\r
+ super(field);\r
+ this.defaultValue = defaultValue;\r
+ }\r
+\r
+ @Override\r
+ public T get(Range element) throws MappingException {\r
+ T value = super.get(element);\r
+ if(value == null)\r
+ return defaultValue;\r
+ else\r
+ return value;\r
+ }\r
+}\r