diff --git a/src/main/java/org/gcube/portlets/user/td/columnwidget/client/properties/ExtractCodelistDefColumnPropertiesCombo.java b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/properties/ExtractCodelistDefColumnPropertiesCombo.java
new file mode 100644
index 0000000..70cb8c0
--- /dev/null
+++ b/src/main/java/org/gcube/portlets/user/td/columnwidget/client/properties/ExtractCodelistDefColumnPropertiesCombo.java
@@ -0,0 +1,26 @@
+package org.gcube.portlets.user.td.columnwidget.client.properties;
+
+
+import org.gcube.portlets.user.td.gwtservice.shared.extract.ExtractCodelistDefColumn;
+
+import com.google.gwt.editor.client.Editor.Path;
+import com.sencha.gxt.data.shared.LabelProvider;
+import com.sencha.gxt.data.shared.ModelKeyProvider;
+import com.sencha.gxt.data.shared.PropertyAccess;
+
+/**
+ * 
+ * @author "Giancarlo Panichi" 
+ * <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a> 
+ *
+ */
+public interface ExtractCodelistDefColumnPropertiesCombo extends
+		PropertyAccess<ExtractCodelistDefColumn> {
+	
+	@Path("id")
+	ModelKeyProvider<ExtractCodelistDefColumn> id();
+	
+	LabelProvider<ExtractCodelistDefColumn> label();
+	
+
+}
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