database

Documentation

Index

• Constants
• Variables
• func Register(name string, driver Driver)
• type Driver
  • func Open(url string) (Driver, error)

Constants

const NilVersion int = -1

Variables

var (
	ErrLocked = fmt.Errorf("unable to acquire lock")
)

Functions

func Register

func Register(name string, driver Driver)

Types

type Driver

type Driver interface {
	Open(url string) (Driver, error)

	Close() error

	Lock() error

	Unlock() error

	// when version = NilVersion, "deinitialize"
	// migration can be nil, in that case, just store version
	Run(version int, migration io.Reader) error

	// version  > 0: regular version
	// version   -1: nil version (const NilVersion)
	// version < -1: will panic
	Version() (int, error)

	Drop() error
}

func Open

func Open(url string) (Driver, error)