diff --git a/src/main/java/org/gcube/informationsystem/types/OrientDBType.java b/src/main/java/org/gcube/informationsystem/types/OrientDBType.java
deleted file mode 100644
index 1507356..0000000
--- a/src/main/java/org/gcube/informationsystem/types/OrientDBType.java
+++ /dev/null
@@ -1,172 +0,0 @@
-package org.gcube.informationsystem.types;
-/*
- *
- *  *  Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
- *  *
- *  *  Licensed under the Apache License, Version 2.0 (the "License");
- *  *  you may not use this file except in compliance with the License.
- *  *  You may obtain a copy of the License at
- *  *
- *  *       http://www.apache.org/licenses/LICENSE-2.0
- *  *
- *  *  Unless required by applicable law or agreed to in writing, software
- *  *  distributed under the License is distributed on an "AS IS" BASIS,
- *  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  *  See the License for the specific language governing permissions and
- *  *  limitations under the License.
- *  *
- *  * For more information: http://www.orientechnologies.com
- *
- */
-
-import java.math.BigInteger;
-import java.net.URI;
-import java.net.URL;
-import java.util.Calendar;
-import java.util.Date;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.UUID;
-
-import org.gcube.informationsystem.model.reference.properties.Property;
-import org.gcube.informationsystem.utils.TypeVersion;
-
-/**
- * @author Lucio Lelii (ISTI - CNR)
- * @author Luca Frosini (ISTI - CNR)
- * Create a mapping with OrientDB Types 
- * https://orientdb.gitbooks.io/orientdb-manual/content/orientdb.wiki/Types.html
- * and gCube IS Types
- * https://wiki.gcube-system.org/gcube/Facet_Based_Resource_Model#Property
- * The code is copied from OrientDB source Code 
- * https://github.com/orientechnologies/orientdb/blob/master/core/src/main/java/com/orientechnologies/orient/core/metadata/schema/OType.java 
- * and adapted for gCube purpose.  
- */
-public class OrientDBType {
-	
-	public enum OType {
-		BOOLEAN("Boolean", 0),
-		
-		INTEGER("Integer", 1),
-		
-		SHORT("Short", 2),
-		
-		LONG("Long", 3),
-		
-		FLOAT("Float", 4),
-		
-		DOUBLE("Double", 5),
-		
-		DATETIME("Datetime", 6),
-		
-		STRING("String", 7),
-		
-		BYNARY("Bynary", 8),
-		
-		PROPERTY("Property", 9),
-		
-		PROPERTYLIST("Property List", 10),
-		
-		PROPERTYSET("Property Set", 11),
-		
-		PROPERTYMAP("Property Map", 12),
-		
-		BYTE("Byte", 17),
-		
-		BINARY("Binary", 8);
-		
-		private String stringValue;
-		private int intValue;
-		
-		OType(String stringValue, int intValue) {
-			this.stringValue = stringValue;
-			this.intValue = intValue;
-		}
-		
-		public String getStringValue() {
-			return stringValue;
-		}
-		
-		public int getIntValue() {
-			return intValue;
-		}
-		
-	}
-	
-	protected static final Map<Class<?>,OType> TYPES_BY_CLASS = new HashMap<Class<?>,OType>();
-	
-	static {
-		
-		// This is made by hand because not all types should be add.
-		TYPES_BY_CLASS.put(Boolean.TYPE, OType.BOOLEAN);
-		TYPES_BY_CLASS.put(Boolean.class, OType.BOOLEAN);
-		
-		TYPES_BY_CLASS.put(Integer.TYPE, OType.INTEGER);
-		TYPES_BY_CLASS.put(Integer.class, OType.INTEGER);
-		TYPES_BY_CLASS.put(BigInteger.class, OType.INTEGER);
-		
-		TYPES_BY_CLASS.put(Short.TYPE, OType.SHORT);
-		TYPES_BY_CLASS.put(Short.class, OType.SHORT);
-		
-		TYPES_BY_CLASS.put(Long.TYPE, OType.LONG);
-		TYPES_BY_CLASS.put(Long.class, OType.LONG);
-		
-		TYPES_BY_CLASS.put(Float.TYPE, OType.FLOAT);
-		TYPES_BY_CLASS.put(Float.class, OType.FLOAT);
-		
-		TYPES_BY_CLASS.put(Double.TYPE, OType.DOUBLE);
-		TYPES_BY_CLASS.put(Double.class, OType.DOUBLE);
-		
-		TYPES_BY_CLASS.put(Date.class, OType.DATETIME);
-		TYPES_BY_CLASS.put(Calendar.class, OType.DATETIME);
-		
-		TYPES_BY_CLASS.put(String.class, OType.STRING);
-		TYPES_BY_CLASS.put(Character.class, OType.STRING);
-		TYPES_BY_CLASS.put(Character.TYPE, OType.STRING);
-		
-		TYPES_BY_CLASS.put(Property.class, OType.PROPERTY);
-		
-		TYPES_BY_CLASS.put(List.class, OType.PROPERTYLIST);
-		
-		TYPES_BY_CLASS.put(Set.class, OType.PROPERTYSET);
-		
-		TYPES_BY_CLASS.put(Map.class, OType.PROPERTYMAP);
-		
-		TYPES_BY_CLASS.put(Byte.TYPE, OType.BYTE);
-		TYPES_BY_CLASS.put(Byte.class, OType.BYTE);
-		
-		TYPES_BY_CLASS.put(byte[].class, OType.BYNARY);
-		TYPES_BY_CLASS.put(Byte[].class, OType.BYNARY);
-		
-		TYPES_BY_CLASS.put(Enum.class, OType.STRING);
-		TYPES_BY_CLASS.put(URI.class, OType.STRING);
-		TYPES_BY_CLASS.put(URL.class, OType.STRING);
-		TYPES_BY_CLASS.put(UUID.class, OType.STRING);
-		TYPES_BY_CLASS.put(TypeVersion.class, OType.STRING);
-		
-	}
-	
-	/**
-	 * Return the correspondent type by checking the "assignability" of the 
-	 * class received as parameter.
-	 * 
-	 * @param iClass Class to check
-	 * @return OType instance if found, otherwise null
-	 */
-	public static OType getTypeByClass(final Class<?> iClass) {
-		if(iClass == null) {
-			return null;
-		}
-		
-		OType type = TYPES_BY_CLASS.get(iClass);
-		
-		if(type == null && Enum.class.isAssignableFrom(iClass)) {
-			type = TYPES_BY_CLASS.get(Enum.class);
-		}
-		
-		return type;
-	}
-	
-}