acl

type DAO interface {
	dao.DAO

	Add(interface{}) error
	SetExpiry(sql.Enquirer, time.Time, *ExpirationPeriod) (int64, error)
	Del(sql.Enquirer, *ExpirationPeriod) (numRows int64, e error)
	Search(sql.Enquirer, *[]interface{}, *ExpirationPeriod) error
}

type ExpirationPeriod struct {
	Start time.Time
	End   time.Time
}

type ExpirationProvider interface {
	GetExpiredBefore() int64
	GetExpiredAfter() int64
}