modelmigration

Documentation

Index

• func RegisterExport(coordinator Coordinator)
• func RegisterImport(coordinator Coordinator)
• type Coordinator
• type ExportService
• type ImportService

Functions

func RegisterExport

func RegisterExport(coordinator Coordinator)

RegisterExport registers the export operations with the given coordinator.

func RegisterImport

func RegisterImport(coordinator Coordinator)

RegisterImport registers a new model migration importer to the coordinator, for importing unit states.

Types

type Coordinator

type Coordinator interface {
	Add(modelmigration.Operation)
}

Coordinator is the interface that is used to add operations to a migration.

type ExportService

type ExportService interface {
	// GetState returns the full unit state. The state may be empty.
	GetState(ctx context.Context, name coreunit.Name) (unitstate.RetrievedUnitState, error)
}

ExportService provides a subset of the unitstate domain service methods needed for the unitstate export.

type ImportService

type ImportService interface {
	// SetState persists the input unit state selectively,
	// based on its populated values.
	SetState(context.Context, unitstate.UnitState) error
}

ImportService provides a subset of the unitstate domain service methods needed for the unitstate import.