#Vertx - Provide data from previous compose results

1 messages · Page 1 of 1 (latest)

silent briar
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Shot in the dark for anyone here that is familiar with vertx. 🙂

Anyone know if there a nice way to have compose() return multiple values? Or a nice way to provide data from a previous compose result?

Ideally i'd have code that would read like this

.compose(foo -> Future.succeededFuture(field1))
.compose(bar -> Future.succeededFuture(field2))
.compose([field1,field2] -> Future.succeededFuture(field3))
...

but im not sure if this is possible at first glance

mortal flumeBOT
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<@&987246452180930620> please have a look, thanks.

mortal flumeBOT
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brazen latch
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so, i dont really know any vertx, but essentially u want the second guy to not return field2 but a class that contains both

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ideally u find a good name that fits ur domain

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but since u didnt gave any details, ima just call it Pair for the example:

# 
record Pair(Foo first, Foo second) {}

...

.compose(foo -> { ... return first; })
.compose(first ->  { ... return new Pair(first, second); })
.compose(pair -> ...)
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theres not really any better or convenient way to piggyback other than actually creating classes/records for it

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at least in java

silent briar
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Gotcha, thanks a lot!