Class: MemoryMigrationStore

Defined in: migrate.ts:318

In-memory store, for tests and single-process tools. Atomic within the process.

Implements

• MigrationStore

Constructors

Constructor

new MemoryMigrationStore(): MemoryMigrationStore

Returns

MemoryMigrationStore

Methods

compareAndSet()

compareAndSet(key, expected, value): boolean

Defined in: migrate.ts:329

Optional but strongly recommended. Atomically sets key to value only if its current value is exactly expected (undefined means "the key must not exist"). Returns whether the write happened. Recipes: Redis WATCH/MULTI or a Lua script; Postgres UPDATE ... WHERE value = $expected (and INSERT ... ON CONFLICT DO NOTHING for absent); DynamoDB ConditionExpression; SQLite BEGIN IMMEDIATE. FileMigrationStore (subpath quantum-safe-ts/file-store) is a tested single-host implementation.

Parameters

key

string

expected

string | undefined

value

string

Returns

boolean

Implementation of

MigrationStore.compareAndSet

---

get()

get(key): string | undefined

Defined in: migrate.ts:320

Parameters

key

string

Returns

string | undefined

Implementation of

MigrationStore.get

---

keys()

keys(): string[]

Defined in: migrate.ts:326

Returns

string[]

Implementation of

MigrationStore.keys

---

set()

set(key, value): void

Defined in: migrate.ts:323

Parameters

key

string

value

string

Returns

void

Implementation of

MigrationStore.set