String getStringKey(cream.DetailsPK value) {
   StringBuilder sb = new StringBuilder();
   sb.append(value.getName());
   sb.append(SEPARATOR);
   sb.append(value.getLastName());
   return sb.toString();
 }
 cream.DetailsPK getKey(String value) {
   cream.DetailsPK key;
   String values[] = value.split(SEPARATOR_ESCAPED);
   key = new cream.DetailsPK();
   key.setName(values[0]);
   key.setLastName(values[1]);
   return key;
 }