@Override public void addAttachment(Attachment attachment) { // Check (uniqueness of) attachment identifier String id = attachment.getIdentifier(); if (id == null) { attachment.setIdentifier(createElementIdentifier()); } attachments.add(attachment); }
@Override public void addTrack(Track track) { // Check (uniqueness of) track identifier String id = track.getIdentifier(); if (id == null) { track.setIdentifier(createElementIdentifier()); } tracks.add(track); }
@Override public void addCatalog(Catalog catalog) { // Check (uniqueness of) catalog identifier String id = catalog.getIdentifier(); if (id == null) { catalog.setIdentifier(createElementIdentifier()); } catalogs.add(catalog); }