diff --git a/src/main/java/org/gcube/application/geoportalcommon/shared/GeoNaItemRef.java b/src/main/java/org/gcube/application/geoportalcommon/shared/GeoNaItemRef.java
index 4e3679e..6396bdf 100644
--- a/src/main/java/org/gcube/application/geoportalcommon/shared/GeoNaItemRef.java
+++ b/src/main/java/org/gcube/application/geoportalcommon/shared/GeoNaItemRef.java
@@ -2,12 +2,13 @@ package org.gcube.application.geoportalcommon.shared;
 
 import java.io.Serializable;
 
+
 /**
  * The Class GeoNaItemRef.
  *
  * @author Francesco Mangiacrapa at ISTI-CNR (francesco.mangiacrapa@isti.cnr.it)
  * 
- *         Dec 1, 2020
+ * Dec 1, 2020
  */
 public class GeoNaItemRef implements Serializable {
 
@@ -16,8 +17,7 @@ public class GeoNaItemRef implements Serializable {
 	 */
 	private static final long serialVersionUID = -7021431511279022193L;
 
-	// this is the mongoID
-	private String itemId;
+	private Long itemId;
 	private String itemType;
 	private String itemName;
 
@@ -32,22 +32,32 @@ public class GeoNaItemRef implements Serializable {
 	}
 
 	/**
-	 * Instantiates a new geo na item ref.
+	 * Instantiates a new geo na object.
 	 *
 	 * @param itemId   the item id
 	 * @param itemType the item type
 	 */
-	public GeoNaItemRef(String itemId, String itemType) {
+	public GeoNaItemRef(Long itemId, String itemType) {
 		super();
 		this.itemId = itemId;
 		this.itemType = itemType;
 	}
 
-	public String getItemId() {
+	/**
+	 * Gets the item id.
+	 *
+	 * @return the item id
+	 */
+	public Long getItemId() {
 		return itemId;
 	}
 
-	public void setItemId(String itemId) {
+	/**
+	 * Sets the item id.
+	 *
+	 * @param itemId the new item id
+	 */
+	public void setItemId(Long itemId) {
 		this.itemId = itemId;
 	}
 
@@ -86,6 +96,8 @@ public class GeoNaItemRef implements Serializable {
 	public void setItemName(String itemName) {
 		this.itemName = itemName;
 	}
+	
+	
 
 	/**
 	 * Gets the restricted link.
@@ -145,4 +157,6 @@ public class GeoNaItemRef implements Serializable {
 		return builder.toString();
 	}
 
+	
+
 }