Mono doOnEmpty in Reactor?How to subscribe to inner Flux/Mono automatically?Wrapping blocking I/O in project reactorReactor. List of Monos, retry on failHow to save in reactive way using Project reactorHow switch Mono<A>.empty() to another type item Mono<B>Using Mono methods with dynamic parametersSpring webflux “Only one connection receive subscriber allowed” if return server response from switchIfEmptyProject Reactor: doOnNext (or the others doOnXXX) asyncReactor: Expand a ParallelFluxGetting first onNext signal from list of Mono
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Mono doOnEmpty in Reactor?
How to subscribe to inner Flux/Mono automatically?Wrapping blocking I/O in project reactorReactor. List of Monos, retry on failHow to save in reactive way using Project reactorHow switch Mono<A>.empty() to another type item Mono<B>Using Mono methods with dynamic parametersSpring webflux “Only one connection receive subscriber allowed” if return server response from switchIfEmptyProject Reactor: doOnNext (or the others doOnXXX) asyncReactor: Expand a ParallelFluxGetting first onNext signal from list of Mono
Is there any operator on Mono that would allow me to log fact that mono was empty?
I cannot use hasElement() because I need result and I don't want to introduce hacky solutions like abusing switchIfEmpty
project-reactor
asked Mar 7 at 9:11
pixelpixel
9,9722193147
add a comment |
Is there any operator on Mono that would allow me to log fact that mono was empty?
I cannot use hasElement() because I need result and I don't want to introduce hacky solutions like abusing switchIfEmpty
project-reactor
asked Mar 7 at 9:11
pixelpixel
9,9722193147
add a comment |
Is there any operator on Mono that would allow me to log fact that mono was empty?
I cannot use hasElement() because I need result and I don't want to introduce hacky solutions like abusing switchIfEmpty
project-reactor
asked Mar 7 at 9:11
pixelpixel
9,9722193147
Is there any operator on Mono that would allow me to log fact that mono was empty?
I cannot use hasElement() because I need result and I don't want to introduce hacky solutions like abusing switchIfEmpty
project-reactor
project-reactor
asked Mar 7 at 9:11
pixelpixel
9,9722193147
asked Mar 7 at 9:11
pixelpixel
9,9722193147
asked Mar 7 at 9:11
pixelpixel
9,9722193147
asked Mar 7 at 9:11
pixelpixel
9,9722193147
asked Mar 7 at 9:11
pixelpixel
9,9722193147
9,9722193147
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
You could use doOnSuccess and test if data is null
.doOnSuccess(data ->
if (data == null)
//onEmpty behavior
)
answered Mar 7 at 9:50
Alexander PankinAlexander Pankin
1,04129
1
note thatdoOnSuccessis only valid if the desired behavior is indeed a side effect (like updating some metrics or something like that). it is for example highly undesirable to call anotherFlux/Monosubscribe, as it would prevent said publisher to propagate its errors to the main sequence. butswitchIfEmptyshould work in that case (as it only acts if the source is effectively empty, otherwise keeping the source value)
– Simon Baslé
Mar 11 at 10:30
add a comment |
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1 Answer
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active
oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You could use doOnSuccess and test if data is null
.doOnSuccess(data ->
if (data == null)
//onEmpty behavior
)
answered Mar 7 at 9:50
Alexander PankinAlexander Pankin
1,04129
1
note thatdoOnSuccessis only valid if the desired behavior is indeed a side effect (like updating some metrics or something like that). it is for example highly undesirable to call anotherFlux/Monosubscribe, as it would prevent said publisher to propagate its errors to the main sequence. butswitchIfEmptyshould work in that case (as it only acts if the source is effectively empty, otherwise keeping the source value)
– Simon Baslé
Mar 11 at 10:30
add a comment |
You could use doOnSuccess and test if data is null
.doOnSuccess(data ->
if (data == null)
//onEmpty behavior
)
answered Mar 7 at 9:50
Alexander PankinAlexander Pankin
1,04129
1
note thatdoOnSuccessis only valid if the desired behavior is indeed a side effect (like updating some metrics or something like that). it is for example highly undesirable to call anotherFlux/Monosubscribe, as it would prevent said publisher to propagate its errors to the main sequence. butswitchIfEmptyshould work in that case (as it only acts if the source is effectively empty, otherwise keeping the source value)
– Simon Baslé
Mar 11 at 10:30
add a comment |
You could use doOnSuccess and test if data is null
.doOnSuccess(data ->
if (data == null)
//onEmpty behavior
)
answered Mar 7 at 9:50
Alexander PankinAlexander Pankin
1,04129
You could use doOnSuccess and test if data is null
.doOnSuccess(data ->
if (data == null)
//onEmpty behavior
)
answered Mar 7 at 9:50
Alexander PankinAlexander Pankin
1,04129
answered Mar 7 at 9:50
Alexander PankinAlexander Pankin
1,04129
answered Mar 7 at 9:50
Alexander PankinAlexander Pankin
1,04129
answered Mar 7 at 9:50
Alexander PankinAlexander Pankin
1,04129
1,04129
1
note thatdoOnSuccessis only valid if the desired behavior is indeed a side effect (like updating some metrics or something like that). it is for example highly undesirable to call anotherFlux/Monosubscribe, as it would prevent said publisher to propagate its errors to the main sequence. butswitchIfEmptyshould work in that case (as it only acts if the source is effectively empty, otherwise keeping the source value)
– Simon Baslé
Mar 11 at 10:30
add a comment |
1
note thatdoOnSuccessis only valid if the desired behavior is indeed a side effect (like updating some metrics or something like that). it is for example highly undesirable to call anotherFlux/Monosubscribe, as it would prevent said publisher to propagate its errors to the main sequence. butswitchIfEmptyshould work in that case (as it only acts if the source is effectively empty, otherwise keeping the source value)
– Simon Baslé
Mar 11 at 10:30
1
1
note that
doOnSuccess is only valid if the desired behavior is indeed a side effect (like updating some metrics or something like that). it is for example highly undesirable to call another Flux/Mono subscribe, as it would prevent said publisher to propagate its errors to the main sequence. but switchIfEmpty should work in that case (as it only acts if the source is effectively empty, otherwise keeping the source value)– Simon Baslé
Mar 11 at 10:30
note that
doOnSuccess is only valid if the desired behavior is indeed a side effect (like updating some metrics or something like that). it is for example highly undesirable to call another Flux/Mono subscribe, as it would prevent said publisher to propagate its errors to the main sequence. but switchIfEmpty should work in that case (as it only acts if the source is effectively empty, otherwise keeping the source value)– Simon Baslé
Mar 11 at 10:30
add a comment |
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