bbgo_origin/pkg/indicator/interface.go

35 lines
984 B
Go

package indicator
import "github.com/c9s/bbgo/pkg/types"
type KLineWindowUpdater interface {
OnKLineWindowUpdate(func(interval types.Interval, window types.KLineWindow))
}
type KLineClosedBinder interface {
BindK(target KLineClosedEmitter, symbol string, interval types.Interval)
}
// KLineClosedEmitter is currently applied to the market data stream
// the market data stream emits the KLine closed event to the listeners.
type KLineClosedEmitter interface {
OnKLineClosed(func(k types.KLine))
}
// KLinePusher provides an interface for API user to push kline value to the indicator.
// The indicator implements its own way to calculate the value from the given kline object.
type KLinePusher interface {
PushK(k types.KLine)
}
// Simple is the simple indicator that only returns one float64 value
type Simple interface {
KLinePusher
Last() float64
OnUpdate(f func(value float64))
}
type KLineCalculateUpdater interface {
CalculateAndUpdate(allKLines []types.KLine)
}