LocalDocumentModel<T> class
abstract
Base class for holding and manipulating data from a local database as a document of T
.
The load() method retrieves the value from the local database and the save() method saves the value to the local database.
The local database is a Json database. Specify a path to specify the location of the contents.
In addition, since it can be used as Map, it is possible to operate the content as it is.
- Inheritance
-
- Object
- ChangeNotifier
- Model<
T> - ValueModel<
T> - LocalDocumentModel
- Implemented types
- Implementers
Constructors
- LocalDocumentModel(String path, T initialValue)
-
Base class for holding and manipulating data from a local database as a document of
T
.
Properties
- disposed → bool
-
True if the model is Disposed.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setteroverride
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
- isEmpty → bool
-
Return
true
if data is empty.no setterinherited - isNotEmpty → bool
-
Return
true
if data is not empty.no setteroverride - loaded → bool
-
It becomes
true
after loadOnce is executed.no setteroverride -
loading
→ Future<
void> ? -
Returns itself after the load finishes.
no setteroverride
- localeValueKey → String
-
Key for locale values.
final
- notifyOnChangeValue → bool
-
If this value is
true
, the change will be notified when value itself is changed.no setterinherited - path → String
-
Path of the local database.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
saving
→ Future<
void> ? -
Returns itself after the save/delete finishes.
no setteroverride
- timeValueKey → String
-
Key for time values.
final
- uidValueKey → String
-
Key for UID values.
final
- value ↔ T
-
The current value stored in this notifier.
getter/setter pairinherited-getteroverride-setter
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
delete(
) → Future< void> -
Deletes the document.
override
-
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 and removeListener will throw after the object is disposed).
override
-
fetch(
[bool listen = true]) → Future< void> -
Provides the best data acquisition method to implement during screen build.
override
-
filterOnLoad(
DynamicMap loaded) → DynamicMap - You can filter the loaded content when it is loaded.
-
filterOnSave(
DynamicMap save) → DynamicMap - You can filter the saving content when it is saving.
-
fromMap(
DynamicMap map) → T -
Creates a specific object from a given
map
.inherited -
initState(
) → void -
The method to be executed when initialization is performed.
inherited
-
load(
) → Future< void> - Retrieves data and updates the data in the model.
-
loadOnce(
) → Future< void> - If the data is empty, load is performed only once.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notifyListeners(
) → void -
Call all the registered listeners.
inherited
-
onDelete(
) → Future< void> - Callback before the delete has been done.
-
onDidDelete(
) → Future< void> - Callback after the delete has been done.
-
onDidLoad(
) → Future< void> - Callback after the load has been done.
-
onDidSave(
) → Future< void> - Callback after the save has been done.
-
onLoad(
) → Future< void> - Callback before the load has been done.
-
onSave(
) → Future< void> - Callback before the save has been done.
-
reload(
) → Future< void> -
Reload data and updates the data in the model.
override
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that are
notified when the object changes.
inherited
-
save(
) → Future< void> -
Data stored in the model is stored in a database external to the app that is tied to the model.
override
-
toMap(
T value) → DynamicMap -
Creates a DynamicMap from its own
value
.inherited -
toNotifier<
V> (V converter(T value)) → ValueNotifier< V> -
Generates a value notifier.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
transaction(
) → LocalDocumentTransactionBuilder -
Generate a Transaction for this document.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
override