Painter base waveform canvas implemented

Fixed Copyright information
Extended SQLite database structure

com.minres.scviewer.database.sqlite/src/com/minres/scviewer/database/sqlite/RelationTypeFactory.java

@@ -0,0 +1,28 @@
+/*******************************************************************************
+ * Copyright (c) 2014, 2015 MINRES Technologies GmbH and others.
+ * 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:
+ *     MINRES Technologies GmbH - initial API and implementation
+ *******************************************************************************/
+package com.minres.scviewer.database.sqlite;
+
+import java.util.HashMap;
+
+import com.minres.scviewer.database.RelationType;
+
+class RelationTypeFactory {
+	
+	HashMap<String, RelationType> registry=new HashMap<String, RelationType>();
+	
+	public RelationType getRelationType(String name) {
+		if(registry.containsKey(name)) return registry.get(name);
+		RelationType rt = new RelationType(name);
+		registry.put(name, rt);
+		return rt;
+	}
+
+}