--- a/src/main/java/org/mpi/openmind/repository/services/AbstractPersistenceService.java	Mon Nov 28 14:26:10 2016 +0100
+++ b/src/main/java/org/mpi/openmind/repository/services/AbstractPersistenceService.java	Thu Dec 08 15:39:26 2016 +0100
@@ -65,7 +65,7 @@
 		return ownValue;
 	}
 
-	/**
+	/*
 	 * Performs the actual disabling of the Hibernate second-level cache.
 	 */
 	/*
@@ -641,7 +641,7 @@
 	 */
 	private void saveCurrentEntity(Session session, Entity entity, Sequence idSequence) throws Exception {
 		Long time = System.currentTimeMillis();
-		refreshEntity(session, entity);
+		refreshEntityRelations(session, entity);
 		entity.setSystemStatus(Node.SYS_STATUS_CURRENT_VERSION);
 		entity.resetRowId();
 		entity.increaseVersion();
@@ -656,26 +656,40 @@
 	}
 	
 	/**
+	 * Updates the endpoints of the relations of this entity.
+	 * 
 	 * This class must be called, 
 	 * because sometimes the current entity is related to other entities that 
 	 * have been changed in parallel to the edition of this entity.
 	 * For this reason, some relations of the current entity can have old information of the related entities (like the modification time).
-	 * This method updates the relations of the current entities getting the actual information of the related entities directly from the DB
+	 * This method updates the relations of the current entities getting the actual information of the related entities directly from the DB.
+	 * 
+	 * @author jurzua 
+	 * 
 	 * @param session
 	 * @param entity
 	 * @throws Exception
 	 */
-	private void refreshEntity(Session session, Entity entity) throws Exception{
+	private void refreshEntityRelations(Session session, Entity entity) throws Exception {
 		for(Relation rel : entity.getSourceRelations()){
-			refreshTarget(session, rel);
+			refreshRelationTarget(session, rel);
 		}
 		
 		for(Relation rel : entity.getTargetRelations()){
-			refreshSource(session, rel);
+			refreshRelationSource(session, rel);
 		}
 	}
 	
-	private void refreshTarget(Session session, Relation rel) throws Exception{
+	/**
+	 * Update the target of the relation.
+	 * 
+     * @author jurzua 
+     * 
+	 * @param session
+	 * @param rel
+	 * @throws Exception
+	 */
+	private void refreshRelationTarget(Session session, Relation rel) throws Exception {
 		long targetModifOld = rel.getTargetModif();
 		StringBuilder sb = new StringBuilder("refreshTarget\n" + rel.toString() + "\n");
 		sb.append(rel.printTarget() + "\n");
@@ -686,13 +700,22 @@
 		Entity target = entityList.get(0);
 		rel.setTarget(target);
 		sb.append(rel.printTarget() + "\n");
-		// the refresh is printed in the standard output only if we detect a difference between the relation and the target entity.
+		// the refresh is logged only if we detect a difference between the relation and the target entity.
 		if(targetModifOld != rel.getTargetModif()){
-			logger.info(sb.toString());
+			logger.warn(sb.toString());
 		}
 	}
 	
-	private void refreshSource(Session session, Relation rel) throws Exception{
+	/**
+	 * Update the source of the relation.
+	 * 
+     * @author jurzua 
+     * 
+	 * @param session
+	 * @param rel
+	 * @throws Exception
+	 */
+	private void refreshRelationSource(Session session, Relation rel) throws Exception {
 		long sourceModifOld = rel.getSourceModif();
 		StringBuilder sb = new StringBuilder("refreshSource\n" + rel.toString() + "\n");
 		sb.append(rel.printSource() + "\n");
@@ -703,9 +726,9 @@
 		Entity source = entityList.get(0);
 		rel.setSource(source);
 		sb.append(rel.printSource() + "\n");
-		// the refresh is printed in the standard output only if we detect a difference between the relation and the source entity.
+		// the refresh is logged only if we detect a difference between the relation and the source entity.
 		if(sourceModifOld != rel.getSourceModif()){
-			logger.info(sb.toString());
+			logger.warn(sb.toString());
 		}
 	}