ModelTransactionBuilder<T> class

Builder for transactions.

The invoked transaction can be call as is, and transaction processing can be performed by executing ModelTransactionDocument.load, ModelTransactionDocument.save, and ModelTransactionDocument.delete.

ModelTransactionRef.read] can be used to create a ModelTransactionDocument from another DocumentBase and describe the process to be performed together.

トランザクションを行うためのビルダー。

呼び出されたトランザクションはそのままcallすることができ、その引数から与えられるModelTransactionDocumentを用いてModelTransactionDocument.load、ModelTransactionDocument.save、ModelTransactionDocument.deleteを実行することでトランザクション処理を行うことが可能です。

ModelTransactionRef.readを用いて他のDocumentBaseからModelTransactionDocumentを作成することができ、まとめて実行する処理を記述することができます。

final transaction = sourceDocument.transaction();
transaction((ref, doc){ // `doc` is [ModelTransactionDocument] of `sourceDocument`.
  final newValue = {"name": "test"}; // The same mechanism can be used to perform the same preservation method as usual.
  doc.save(newValue);
});
Available Extensions

Properties

document → DocumentBase<T>
Original document.
final
hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

call(FutureOr<void> transaction(ModelTransactionRef ref, ModelTransactionDocument<T> doc)) → FutureOr<void>
transaction is passed as a callback to execute the transaction.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited