VirtualFileSystem class abstract base

A virtual filesystem used by sqlite3 to access the current I/O environment.

Instead of having an integer return code, file system implementations should throw a VfsException to signal invalid operations. For details on the individual methods, consult the sqlite3.h header file and its documentation.

For a file system implementation that implements a few methods already, consider extending BaseVirtualFileSystem.

Constructors

VirtualFileSystem(String name)

Properties

hashCode → int

The hash code for this object.

no setter, inherited

name → String

The name of this virtual file system.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

xAccess(String path, int flags) → int

Check whether a file can be accessed.

xCurrentTime() → DateTime

Returns the current time.

xDelete(String path, int syncDir) → void

Delete a file.

xFullPathName(String path) → String

Resolves a path name supplied by the user into a path that can be used by the other methods of this VFS.

xOpen(Sqlite3Filename path, int flags) → XOpenResult

Opens a file, returning supported flags and a file instance.

xRandomness(Uint8List target) → void

Fill the target with random bytes.

xSleep(Duration duration) → void

Sleeps for the passed duration.

Operators

operator ==(Object other) → bool

The equality operator.

inherited