LceStreamExtension<DATA extends Object> extension

LceState stream extensions

on

Methods

dataNoErrors() → Stream<DATA>
Model's data stream with state information dropped. No error events DATA Source model data type
dataWithEmptyErrors() → Stream<DATA>
Model's data stream with state information dropped. Emits error event on upstream error state when upstream has no data DATA Source model data type
dataWithErrors() → Stream<DATA>
Model's data stream with state information dropped. Emits error event on upstream error state DATA Source model data type
errorIf(bool predicate(LceError<DATA> error)) → Stream<LceState<DATA>>
Emits error event when state is LceError and predicate returns true
errorOnEmptyError() → Stream<LceState<DATA>>
Emits error on every LceError with empty data
errorOnError() → Stream<LceState<DATA>>
Emits error on every LceError
errorToLce([DATA? errorData(Object error)?]) → Stream<LceState<DATA>>
Maps an upstream error to LceError errorData Evaluates data for error state
flatMapSingleData<DATA_2 extends Object>(Future<DATA_2> mapper(DATA data)) → Stream<LceState<DATA_2>>
Maps each DATA to future for DATA_2 and merges back to LceState. If error occurs in mapper emits LceError. Example: load some DATA_2 from server using original DATA as a parameter. DATA_2 Resulting data type mapper Data mapper
getData([bool errorPredicate(LceError<DATA> error)?]) → Stream<DATA>
Returns model's data stream dropping state information DATA Source model data type errorPredicate A predicate to check error state. If predicate returns true, the stream emits error event
onEmptyLoadingReturn(LceState<DATA> block(LceLoading<DATA> loading)) → Stream<LceState<DATA>>
Substitutes LceLoading with empty data with state produced by block block transformation block
onEmptyLoadingReturnData(DATA block()) → Stream<LceState<DATA>>
Substitutes LceLoading empty data with data produced by block block Item creation block
validData([bool errorPredicate(LceError<DATA> error)?]) → Stream<DATA>
Model's valid data stream with state information dropped. DATA Source model data type errorPredicate A predicate to check error state. If predicate returns true, the stream emits error event