/** * Creates an ext-id for a tree-element * * @param element a tree-element * @return ext-id for the tree-element */ public static String createExtId(CnATreeElement element) { if (element == null) { return null; } String extId = element.getExtId(); if (extId == null || extId.isEmpty()) { if (element.getEntity() != null) { extId = element.getEntity().getId(); } else { extId = element.getId(); } } return extId; }