How to return Deferred with the instant result?
up vote
1
down vote
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I have a conditional statement which should return Deferred result in both cases, but I don't know how to manually create Deferred object with predefined result. Here's code snapshot:
val deferredResult = if (condition) {
callSuspendFunction(params)
} else {
deferred???
}
callSuspendFunction returns the result of async operation. Although I can write something like coroutineScope { async { result } } instead of deferred???, but it looks really not what it should be.
kotlin coroutine
asked Nov 13 at 3:28
Praytic
324314
add a comment |
up vote
1
down vote
favorite
I have a conditional statement which should return Deferred result in both cases, but I don't know how to manually create Deferred object with predefined result. Here's code snapshot:
val deferredResult = if (condition) {
callSuspendFunction(params)
} else {
deferred???
}
callSuspendFunction returns the result of async operation. Although I can write something like coroutineScope { async { result } } instead of deferred???, but it looks really not what it should be.
kotlin coroutine
asked Nov 13 at 3:28
Praytic
324314
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I have a conditional statement which should return Deferred result in both cases, but I don't know how to manually create Deferred object with predefined result. Here's code snapshot:
val deferredResult = if (condition) {
callSuspendFunction(params)
} else {
deferred???
}
callSuspendFunction returns the result of async operation. Although I can write something like coroutineScope { async { result } } instead of deferred???, but it looks really not what it should be.
kotlin coroutine
asked Nov 13 at 3:28
Praytic
324314
I have a conditional statement which should return Deferred result in both cases, but I don't know how to manually create Deferred object with predefined result. Here's code snapshot:
val deferredResult = if (condition) {
callSuspendFunction(params)
} else {
deferred???
}
callSuspendFunction returns the result of async operation. Although I can write something like coroutineScope { async { result } } instead of deferred???, but it looks really not what it should be.
kotlin coroutine
kotlin coroutine
asked Nov 13 at 3:28
Praytic
324314
asked Nov 13 at 3:28
Praytic
324314
edited Nov 13 at 5:39
asked Nov 13 at 3:28
Praytic
324314
asked Nov 13 at 3:28
Praytic
324314
asked Nov 13 at 3:28
Praytic
324314
324314
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
up vote
1
down vote
accepted
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true) {
callSuspendFunction(params)
} else {
CompletableDeferred(10)
}
answered Nov 13 at 5:47
Rene
1,24115
add a comment |
up vote
-1
down vote
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition) {
3
} else {
true
}
answered Nov 13 at 3:54
vishal jangid
1,835818
add a comment |
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
accepted
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true) {
callSuspendFunction(params)
} else {
CompletableDeferred(10)
}
answered Nov 13 at 5:47
Rene
1,24115
add a comment |
up vote
1
down vote
accepted
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true) {
callSuspendFunction(params)
} else {
CompletableDeferred(10)
}
answered Nov 13 at 5:47
Rene
1,24115
add a comment |
up vote
1
down vote
accepted
up vote
1
down vote
accepted
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true) {
callSuspendFunction(params)
} else {
CompletableDeferred(10)
}
answered Nov 13 at 5:47
Rene
1,24115
You can use a CompletableDeferred, see https://kotlin.github.io/kotlinx.coroutines/kotlinx-coroutines-core/kotlinx.coroutines/-completable-deferred/
val value = if(true) {
callSuspendFunction(params)
} else {
CompletableDeferred(10)
}
answered Nov 13 at 5:47
Rene
1,24115
answered Nov 13 at 5:47
Rene
1,24115
answered Nov 13 at 5:47
Rene
1,24115
answered Nov 13 at 5:47
Rene
1,24115
1,24115
add a comment |
add a comment |
up vote
-1
down vote
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition) {
3
} else {
true
}
answered Nov 13 at 3:54
vishal jangid
1,835818
add a comment |
up vote
-1
down vote
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition) {
3
} else {
true
}
answered Nov 13 at 3:54
vishal jangid
1,835818
add a comment |
up vote
-1
down vote
up vote
-1
down vote
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition) {
3
} else {
true
}
answered Nov 13 at 3:54
vishal jangid
1,835818
you can drictlly use like below.
In first condition it will return int and in second case it will return boolean
val deferredResult = if (condition) {
3
} else {
true
}
answered Nov 13 at 3:54
vishal jangid
1,835818
answered Nov 13 at 3:54
vishal jangid
1,835818
answered Nov 13 at 3:54
vishal jangid
1,835818
answered Nov 13 at 3:54
vishal jangid
1,835818
1,835818
add a comment |
add a comment |
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