DocumentBase<T> class abstract

Define a document model for storing T types that inherit from ChangeNotifier.

Any changes made locally in the app will be notified and related objects will reflect the changes.

When a value is reflected by save, delete, transaction, batch, or updated in real time from outside, all listeners are notified of the change by notifyListeners.

Define object conversion from DynamicMap to T, which is output by decoding Json by implementing DocumentBase.fromMap.

Implementing DocumentBase.toMap defines the conversion from a T object to a DynamicMap that can later be Json encoded.

By defining DocumentBase.modelQuery, you can specify settings for loading, such as document paths.

The value value can be retrieved. The value set is forbidden and should be updated using the save method.

ChangeNotifierを継承したT型を保存するためのドキュメントモデルを定義します。

アプリのローカル内での変更はすべて通知され関連のあるオブジェクトは変更内容が反映されます。

saveやdelete、transaction、batchでの値反映、外部からのリアルタイム更新が行われた場合notifyListenersによって変更内容がすべてのリスナーに通知されます。

DocumentBase.fromMapを実装することでJsonをデコードして出力されるDynamicMapからTへのオブジェクト変換を定義します。

DocumentBase.toMapを実装することでTのオブジェクトから後にJsonエンコード可能なDynamicMapへの変換を定義します。

DocumentBase.modelQueryを定義することで、ドキュメントのパスなど読み込みを行うための設定を指定できます。

value値を取得できます。valueのセットは禁止されており、saveメソッドで更新を行ないます。

Inheritance
Implemented types
Implementers
Available Extensions

Constructors

DocumentBase(DocumentModelQuery modelQuery, [T? _value])
Define a document model for storing T types that inherit from ChangeNotifier.
DocumentBase.unrestricted(DocumentModelQuery modelQuery, [T? _value])
Define a document model for storing T types that inherit from ChangeNotifier.

Properties

databaseQuery → ModelAdapterDocumentQuery
Database queries for documents.
no setter
hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
loaded → bool
Returns true if the data was successfully loaded by the load method.
no setter
loading → Future<T?>?
If load or reload is executed, it waits until the loading process is completed.
no setter
modelQuery → DocumentModelQuery
Query for loading and saving documents.
final
reloading → Future<T?>?
If reload is done, it waits until the loading process is finished.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
saving → Future<void>?
If save or delete is executed, it waits until the read process is completed.
no setter
subscriptions → List<StreamSubscription>
List of currently subscribed notifications. All should be canceled when the object is destroyed.
no setter
uid → String
Returns the ID for the document path.
no setter
value → T?
The current value stored in this document.
no setteroverride

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
batch({int splitLength = 100}) → ModelBatchDocumentBuilder<T>
Builder for batch processing.
delete() → Future<void>
Data can be deleted.
deleteRequest() → Future<void>
Implement internal processing when delete is executed.
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
override
filterOnDidLoad(T? value) → Future<T?>
Callback called after loading.
filterOnLoad(DynamicMap rawData) → DynamicMap
Implement filters when loading data.
filterOnSave(DynamicMap rawData) → DynamicMap
You can filter the data to be saved.
fromMap(DynamicMap map) → T
Defines the object transformation from DynamicMap to T, which is output by decoding Json.
handledOnUpdate(ModelUpdateNotification update) → Future<void>
Describe the callback process to be passed to ModelAdapterDocumentQuery.callback.
load() → Future<T?>
Reads documents corresponding to modelQuery.
loadRequest() → Future<DynamicMap?>
Implement internal processing when load or reload is executed.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
reload() → Future<T?>
Reload the document corresponding to modelQuery.
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
save(T? newValue) → Future<void>
Data can be saved.
saveRequest(DynamicMap map) → Future<void>
Implement internal processing when save is executed.
toMap(T value) → DynamicMap
Defines the conversion from a T object to a DynamicMap that can later be Json encoded.
toString() → String
A string representation of this object.
override
transaction() → ModelTransactionDocumentBuilder<T>
Builder for transactions.

Operators

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