Transaction

Defined in: undo/Transaction.ts:7

A transaction groups multiple commands into a single undoable unit. All sub-commands are executed together and undone together.

Implements

• Command

Constructors

Constructor

new Transaction(name?): Transaction

Defined in: undo/Transaction.ts:11

Parameters

name?

string = 'Transaction'

Returns

Transaction

Accessors

isEmpty

Get Signature

get isEmpty(): boolean

Defined in: undo/Transaction.ts:26

Whether this transaction has no commands.

Returns

boolean

---

name

Get Signature

get name(): string

Defined in: undo/Transaction.ts:16

The name of this transaction.

Returns

string

---

size

Get Signature

get size(): number

Defined in: undo/Transaction.ts:21

Get the number of sub-commands in this transaction.

Returns

number

Methods

add()

add(command): this

Defined in: undo/Transaction.ts:31

Add a command to this transaction.

Parameters

command

Command

Returns

this

---

clear()

clear(): void

Defined in: undo/Transaction.ts:42

Clear all commands in this transaction.

Returns

void

---

describe()

describe(): string

Defined in: undo/Transaction.ts:61

Get a description of this transaction.

Returns

string

Implementation of

Command.describe

---

execute()

execute(): void

Defined in: undo/Transaction.ts:47

Execute all commands in order.

Returns

void

Implementation of

Command.execute

---

removeLast()

removeLast(): Command | null

Defined in: undo/Transaction.ts:37

Remove the last added command.

Returns

Command | null

---

undo()

undo(): void

Defined in: undo/Transaction.ts:54

Undo all commands in reverse order.

Returns

void

Implementation of

Command.undo