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
Properties
-
files
→ List<
String> -
Lists all files stored in this file system.
no setteroverride
- hashCode → int
-
The hash code for this object.
no setterinherited
- isClosed → bool
-
Whether this file system is closing or closed.
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
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 offsetoffset
into thetarget
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
tolength
.override -
write(
String path, Uint8List bytes, int offset) → void -
Writes a chunk from
bytes
into the file at pathpath
and offsetoffset
.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
.