private void storeDiffs(
Preferences prefs, ImageWriterFactory prevFactory, ImageWriterFactory factory)
throws BackingStoreException {
for (Entry<String, ImageWriterParam> entry : prevFactory.getEntries()) {
String tsuid = entry.getKey();
if (factory.get(tsuid) == null) {
Preferences node = prefs.node(tsuid);
node.removeNode();
node.flush();
}
}
for (Entry<String, ImageWriterParam> entry : factory.getEntries()) {
String tsuid = entry.getKey();
storeDiffs(prefs.node(tsuid), prevFactory.get(tsuid), entry.getValue());
}
}
