message

type Query struct {
	C chan QueryReply
}

type QueryReply struct {
	Info string
}

type Read struct {
	CommandID int
	Key       db.Key
}

type ReadReply struct {
	CommandID int
	Value     db.Value
}

type Register struct {
	Client bool
	ID     identity.NodeID
	Addr   string
}

type Transaction struct {
	Command    db.Command
	Properties map[string]string
	Timestamp  time.Time
	NodeID     identity.NodeID // forward by node
	ID         string
	C          chan TransactionReply // reply channel created by request receiver
}

type TransactionReply struct {
	Command    db.Command
	Value      db.Value
	Properties map[string]string
	Delay      time.Duration
	Err        error
}