aggregator

Documentation

Index

• Variables
• func Start()
• type Aggregator
• type Instance
  • func New(m *Aggregator, pop func(float64, error)) (agg Instance, err error)

Variables

var ErrorBlank = errors.New("无数据")

Functions

func Start

func Start()

Types

type Aggregator

type Aggregator struct {
	Crontab    string `json:"crontab"`    //定时计划
	Expression string `json:"expression"` //表达式
	Type       string `json:"type"`       //聚合算法 inc dec avg count min max sum last first
	Assign     string `json:"assign"`     //赋值
}

type Instance

type Instance interface {
	Compile(expression string) error
	Push(ctx map[string]interface{}) error
	Pop() (float64, error)
}

func New

func New(m *Aggregator, pop func(float64, error)) (agg Instance, err error)

New 新建