--- /dev/null
+package org.simantics.modeling.adapters;\r
+\r
+import org.simantics.db.Metadata;\r
+import org.simantics.db.Session;\r
+\r
+/**\r
+ * A tagging metadata entry that is used for marking a graph transaction as one\r
+ * that was was at least partly caused by changes made to the change history of\r
+ * model entities.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ChangeHistoryUpdated implements Metadata {\r
+\r
+ @Override\r
+ public byte[] serialise(Session session) {\r
+ return new byte[0];\r
+ }\r
+\r
+ public static ChangeHistoryUpdated deserialise(Session session, byte[] input) {\r
+ return new ChangeHistoryUpdated();\r
+ }\r
+\r
+}\r