IndexedDbFileSystem class

A file system storing files divided into blocks in an IndexedDB database.

As sqlite3's file system is synchronous and IndexedDB isn't, no guarantees on durability can be made. Instead, file changes are written at some point after the database is changed. However you can wait for changes manually with flush

In the future, we may want to store individual blocks instead.

Implemented types

• FileSystem

Properties

files → List<String>

Lists all files stored in this file system.

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

isClosed → bool

Whether this file system is closing or closed.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clear() → Future<void>

Deletes all files stored in this file system.

override

close() → Future<void>

createFile(String path, {bool errorIfNotExists = false, bool errorIfAlreadyExists = false}) → void

Creates an empty file at path.

override

createTemporaryFile() → String

Creates a temporary file with a unique name.

override

deleteFile(String path) → void

Deletes a file at path if it exists, throwing a FileSystemException otherwise.

override

exists(String path) → bool

Whether a file at path exists.

override

flush() → Future<void>

Waits for all pending operations to finish, then completes the future.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

read(String path, Uint8List target, int offset) → int

Reads a chunk of the file at path and offset offset into the target buffer.

override

sizeOfFile(String path) → int

Returns the size of a file at path if it exists.

override

toString() → String

A string representation of this object.

inherited

truncateFile(String path, int length) → void

Sets the size of the file at path to length.

override

write(String path, Uint8List bytes, int offset) → void

Writes a chunk from bytes into the file at path path and offset offset.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

databases() → Future<List<String>?>

Returns all IndexedDB database names accessible from the current context.

deleteDatabase([String dbName = 'sqlite3_databases']) → Future<void>

Deletes an IndexedDB database.

open({required String dbName}) → Future<IndexedDbFileSystem>

Loads an IndexedDB file system identified by the dbName.