Output<T, ARG> class

只输出数据的业务单元

Inheritance
Mixed in types
Implementers

Constructors

Output({required T seedValue, required String semantics, bool sync = true, bool printLog = true, bool isBehavior = true, required FetchCallback<T, ARG?> fetch, T onReset()?, PersistConfig<T>? persistConfig, bool skipError = false})

Properties

future → Future<T>
输出Future
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
isDisposed → bool
no setterinherited
latest ↔ T
最新的值
getter/setter pairinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
stream ↔ Stream<T>
输出Stream
getter/setter pairinherited

Methods

addError(Object error, [StackTrace? stackTrace]) → void
inherited
dispose() → void
关闭流
inherited
distinct([bool test(T previous, T next)?]) → Stream<T>
inherited
first([bool cancelSubscription = false]) → Future<T>
输出Future, cancelSubscription决定是否取消订阅
inherited
invalidate([T? newData]) → void
重新发送数据 用户修改数据后刷新的场景
inherited
listen(ValueChanged<T> listener, {Function? onError, VoidCallback? onDone, bool? cancelOnError}) → StreamSubscription<T>
监听流
inherited
map<S>(S convert(T event)) → Stream<S>
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reset() → void
清理保存的值, 恢复成初始状态
inherited
runtimeSummary() → String
运行时概要
inherited
sample(Duration duration) → Stream<T>
inherited
toString() → String
A string representation of this object.
inherited
update([ARG? arg]) → Future<T>
使用内部的trigger获取数据
inherited
where(bool test(T event)) → Stream<T>
inherited
whereType<R>() → Stream<R>
inherited

Operators

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

Static Methods

optional<T, ARG>({T? seedValue, required String semantics, bool sync = true, bool printLog = true, bool isBehavior = true, required FetchCallback<T, ARG?> fetch, T? onReset()?, PersistConfig<T?>? persistConfig, bool skipError = false}) → OptionalOutput<T, ARG>