Managing expectedtype property

src/main/java/org/gcube/informationsystem/resourceregistry/instances/base/ElementManagement.java

@@ -143,6 +143,7 @@ public abstract class ElementManagement<El extends OElement, T extends Type> {
 		this.ignoreKeys = new HashSet<String>();
 		this.ignoreKeys.add(Element.TYPE_PROPERTY);
 		this.ignoreKeys.add(Element.SUPERTYPES_PROPERTY);
+		this.ignoreKeys.add(Element.EXPECTED_TYPE_PROPERTY);
 		this.ignoreKeys.add(IdentifiableElement.ID_PROPERTY);
 		this.ignoreKeys.add(IdentifiableElement.METADATA_PROPERTY);
 		

src/main/java/org/gcube/informationsystem/resourceregistry/utils/EncryptedOrient.java

@@ -55,6 +55,11 @@ public class EncryptedOrient extends ODocument implements Encrypted {
 			return list;
 		}
 	}
+	
+	@Override
+	public String getExpectedtype() {
+		return null;
+	}
 
 	public String getEncryptedValue() {
 		return this.field(EncryptedOrient.VALUE);
@@ -115,13 +120,6 @@ public class EncryptedOrient extends ODocument implements Encrypted {
 			
 	}
 	
-	@Override
-	public String toJSON(String iFormat) {
-		String ret =  super.toJSON(iFormat);
-		ret = OrientDBUtility.replaceType(ret);
-		return ret;
-	}
-
 	@Override
 	public String getValue() {
 		return getEncryptedValue();
@@ -132,4 +130,11 @@ public class EncryptedOrient extends ODocument implements Encrypted {
 		setEncryptedValue(value);
 	}
 	
+	@Override
+	public String toJSON(String iFormat) {
+		String ret =  super.toJSON(iFormat);
+		ret = OrientDBUtility.replaceType(ret);
+		return ret;
+	}
+	
 }

src/main/java/org/gcube/informationsystem/resourceregistry/utils/MetadataOrient.java

@@ -47,6 +47,11 @@ public class MetadataOrient extends ODocument implements Metadata {
 		}
 	}
 	
+	@Override
+	public String getExpectedtype() {
+		return null;
+	}
+	
 	@Override
 	public String getCreatedBy() {
 		return this.field(Metadata.CREATED_BY_PROPERTY);

src/main/java/org/gcube/informationsystem/resourceregistry/utils/PropagationConstraintOrient.java

@@ -45,6 +45,11 @@ public class PropagationConstraintOrient extends ODocument implements Propagatio
 			return list;
 		}
 	}
+	
+	@Override
+	public String getExpectedtype() {
+		return null;
+	}
 
 	@Override
 	public AddConstraint getAddConstraint() {