sequence

Documentation

Index

• func Status(s Storage, u Updator) ([]Sequence, *Error)
• type Error
  • func Extract(e Updator, tables []Table, s Storage) *Error
  • func Update(s Storage, u Updator) *Error
• type Sequence
• type Storage
• type Table
• type Updator
• type UpdatorFactory

Functions

func Status

func Status(s Storage, u Updator) ([]Sequence, *Error)

Status retrun sequence with its current status

Types

type Error

type Error struct {
	Description string
}

func Extract

func Extract(e Updator, tables []Table, s Storage) *Error

func Update

func Update(s Storage, u Updator) *Error

type Sequence

type Sequence struct {
	Name   string
	Table  string
	Column string
	Value  int
}

type Storage

type Storage interface {
	List() ([]Sequence, *Error)
	Store(sequences []Sequence) *Error
}

Storage allows to store and retrieve sequences objects.

type Table

type Table struct {
	Name string
	Keys []string
}

type Updator

type Updator interface {
	Extract() ([]string, *Error)
	Status(sequence Sequence) (Sequence, *Error)
	Update([]Sequence) *Error
}

Updator allows to extract sequence from a relational database.

type UpdatorFactory

type UpdatorFactory interface {
	New(url string, schema string) Updator
}

UpdatorFactory exposes methods to create new Updators.