MX4JModelMBean.java 文件源码

private boolean shouldPersistNow(Descriptor attribute, Descriptor mbean, String lastUpdateField) {
  int persist = getPersistPolicy(attribute, mbean);
  if (persist == PERSIST_NO_MORE_OFTEN_THAN) {
    Long period = getFieldTimeValue(attribute, mbean, "persistPeriod");
    long now = System.currentTimeMillis();
    Long lastUpdate = (Long) attribute.getFieldValue(lastUpdateField);
    if (now - lastUpdate.longValue() < period.longValue())
      return false;
    else
      return true;
  } else if (persist == PERSIST_NEVER) {
    return false;
  } else if (persist == PERSIST_ON_TIMER) {
    return false;
  } else if (persist == PERSIST_ON_UPDATE) {
    return true;
  } else {
    throw new ImplementationException(
        LocalizedStrings.MX4JModelMBean_INVALID_PERSIST_VALUE.toLocalizedString());
  }
}