Query<T> class
abstract
Querying is how you find records that match certain conditions.
- Available Extensions
Constructors
- Query()
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
count(
) → Future< int> - Count how many objects match this query.
-
countSync(
) → int - Count how many objects match this query.
-
deleteAll(
) → Future< int> - Delete all objects that match this query. Returns the number of deleted objects.
-
deleteAllSync(
) → int - Delete all objects that match this query. Returns the number of deleted objects.
-
deleteFirst(
) → Future< bool> - Delete the first object that matches this query. Returns whether a object has been deleted.
-
deleteFirstSync(
) → bool - Delete the first object that matches this query. Returns whether a object has been deleted.
-
exportJson(
) → Future< List< Map< >String, dynamic> > - Export the results of this query as json.
-
exportJsonRaw<
R> (R callback(Uint8List)) → Future< R> - Export the results of this query as json bytes.
-
exportJsonRawSync<
R> (R callback(Uint8List)) → R - Export the results of this query as json bytes.
-
exportJsonSync(
) → List< Map< String, dynamic> > - Export the results of this query as json.
-
findAll(
) → Future< List< T> > - Find all objects that match this query.
-
findAllSync(
) → List< T> - Find all objects that match this query.
-
findFirst(
) → Future< T?> -
Find the first object that matches this query or
nullif no object matches. -
findFirstSync(
) → T? -
Find the first object that matches this query or
nullif no object matches. -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
watch(
{bool initialReturn = false}) → Stream< List< T> > - Create a watcher that yiels the results of this query whenever its results have (potentially) changed.
-
watchLazy(
) → Stream< void> - Watch the query for changes.
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited