private List<DictionaryEntry> convertToClientEntries(List<PersistentDictionaryEntry> entries) {
   List<DictionaryEntry> clientEntries = new ArrayList<DictionaryEntry>(entries.size());
   for (PersistentDictionaryEntry entry : entries) {
     clientEntries.add(
         new DictionaryEntry(
             entry.getLanguage(), entry.getWord(), entry.getTranslation(), entry.getExample()));
   }
   return clientEntries;
 }
 private String encodeEntry(PersistentDictionaryEntry entry) {
   return entry.getLanguage() + "." + entry.getWord();
 }