/** * Lists the object instance identifier for a parameter name identifier. * * @param input The name identifier of the Definition * @return The object instance identifier of the Definition. Null if not * found. */ public synchronized Long list(Identifier input) { final LongList objIds = this.listAll(); for (Long objId : objIds) { if (compareName(objId, input)) { return objId; } } return null; // Not found! }