block7.go

type CPaperImpl struct {
}

func (cc *CPaperImpl) state(ctx router.Context) m.MappedState {
	return m.WrapState(ctx.State(), m.StateMappings{}.
		//  Create mapping for Commercial Paper entity
		Add(&schema.CommercialPaper{},
			m.PKeySchema(&schema.CommercialPaperId{}), // Key namespace will be <"CommercialPaper", Issuer, PaperNumber>
			m.List(&schema.CommercialPaperList{}),     // Structure of result for List method
			m.UniqKey("ExternalId"),                   // External Id is unique
		))
}

func (cc *CPaperImpl) event(ctx router.Context) state.Event {
	return m.WrapEvent(ctx.Event(), m.EventMappings{}.
		// Event name will be "IssueCommercialPaper", payload - same as issue payload
		Add(&schema.IssueCommercialPaper{}).
		// Event name will be "BuyCommercialPaper"
		Add(&schema.BuyCommercialPaper{}).
		// Event name will be "RedeemCommercialPaper"
		Add(&schema.RedeemCommercialPaper{}))
}