GenericMementoBuilder groupBuilder = setBuilder.newChild()
.add("groupName", group.getDescriptor().getName())
.add("groupDescription", group.getDescriptor().getDescription());
for (DbAction action : group.actions) {
groupBuilder.newChild()
.add("@type", DbChangeUtils.TYPE_HANDLER.getTypeName(action))
.add(action.createMemento())
.childDone();
}