diff --git a/src/org/gcube/application/framework/core/util/SchemaFieldPair.java b/src/org/gcube/application/framework/core/util/SchemaFieldPair.java
new file mode 100644
index 0000000..3080817
--- /dev/null
+++ b/src/org/gcube/application/framework/core/util/SchemaFieldPair.java
@@ -0,0 +1,108 @@
+package org.gcube.application.framework.core.util;
+
+import java.util.ArrayList;
+
+public class SchemaFieldPair implements Cloneable{
+	
+	String schema;
+	String fieldName;
+	String sortValue;
+	ArrayList<String> metadataCollectionIds;
+	ArrayList<String> metadataCollectionLanguage;
+	ArrayList<String> contentCollectionIds;
+	
+	public ArrayList<String> getContentCollectionIds() {
+		return contentCollectionIds;
+	}
+	
+	public ArrayList<String> getMetadataCollectionLanguage() {
+		return metadataCollectionLanguage;
+	}
+
+
+	public String getSortValue() {
+		return sortValue;
+	}
+
+
+	public void setSortValue(String sortValue) {
+		this.sortValue = sortValue;
+	}
+
+
+	public SchemaFieldPair() {
+		schema = new String();
+		fieldName = new String();
+		sortValue = new String();
+	}
+	
+	public SchemaFieldPair (String schemaName, String field, String sortValueName) {
+		schema = schemaName;
+		fieldName = field;
+		sortValue = sortValueName;
+		metadataCollectionIds = new ArrayList();
+		metadataCollectionLanguage = new ArrayList();
+		contentCollectionIds = new ArrayList();
+	}
+	
+	
+	public ArrayList<String> getMetadataCollectionIds() {
+		return metadataCollectionIds;
+	}
+	
+	public void addMetadataColIdAndLanguage(String mid, String language) {
+		metadataCollectionIds.add(mid);
+		metadataCollectionLanguage.add(language);
+	}
+	
+	public void addContentCollectionId(String colId) {
+		if (contentCollectionIds == null)
+			contentCollectionIds = new ArrayList<String>();
+		contentCollectionIds.add(colId);
+	}
+	
+	public SchemaFieldPair clone() {
+		
+		SchemaFieldPair newSFP = new SchemaFieldPair();
+		newSFP.setFieldName(new String(this.fieldName));
+		newSFP.setSchema(new String(this.schema));
+		newSFP.setSortValue(new String(this.sortValue));
+		if (metadataCollectionIds != null) {
+			for (int i = 0; i < metadataCollectionIds.size(); i++) {
+				newSFP.addMetadataColIdAndLanguage(new String(this.metadataCollectionIds.get(i)), new String(this.metadataCollectionLanguage.get(i)));
+			}
+		}
+		if (contentCollectionIds != null) {
+			for (int i = 0; i < contentCollectionIds.size(); i++) {
+				newSFP.addContentCollectionId(this.contentCollectionIds.get(i));
+			}
+		}
+		
+		return newSFP;
+	}
+	
+	/**
+	 * 
+	 * @param schemaName
+	 */
+	public void setSchema(String schemaName) {
+		schema = schemaName;
+	}
+	
+	/**
+	 * 
+	 * @param field
+	 */
+	public void setFieldName (String field) {
+		fieldName = field;
+	}
+	
+	public String getSchema() {
+		return schema;
+	}
+	
+	public String getFieldName () {
+		return fieldName;
+	}
+
+}