FileBasedIdStorage class final

An IdStorage persisted as one JSON file, loaded on first use.

Codes are written sorted so the file diffs cleanly, and every mutation is written through before it reports success — a store that only mutated memory would look correct for a session and lose everything after it.

Implemented types

• IdStorage

Constructors

FileBasedIdStorage({required File file})

Creates a store backed by file; the file is created on first write.

Properties

file → File

The file holding the JSON state.

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

add({required String idType, required String idCode}) → Future<Either<IdStorageFailure, Unit>>

Records idCode under idType, keeping whatever is already stored.

override

clear() → Future<Either<IdStorageFailure, Unit>>

Drops every code and every counter.

override

codesFor({required String idType}) → Future<Either<IdStorageFailure, Set<String>>>

Every code stored under idType.

override

contains({required String idType, required String idCode}) → Future<Either<IdStorageFailure, bool>>

Whether idCode is stored under idType.

override

counterFor({required String idType}) → Future<Either<IdStorageFailure, int>>

The counter stored for idType, or 0 when none was ever set.

override

idTypes() → Future<Either<IdStorageFailure, Set<String>>>

Every id type holding at least one code.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

remove({required String idType, required String idCode}) → Future<Either<IdStorageFailure, Unit>>

Removes idCode from idType; removing an absent code is a success.

override

setCounter({required String idType, required int value}) → Future<Either<IdStorageFailure, Unit>>

Stores value as the counter for idType.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited