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Asynchronous functions
Last update:
May 18, 2026
Lists ColdFusion functions and Future methods used for asynchronous coordination, timeouts, executor-based chaining, and async completion handling.
About this category
These APIs work with the CFML Future type (for example values returned from runAsync). Standalone functions accept arrays of futures. Member methods are invoked on a Future instance. Methods whose names end with Async run follow-up work on the async executor instead of only on the completing thread.
For synchronous chaining and completion methods (no Async suffix), see the same map under Chaining — sync and Completion and errors — sync.
Standalone coordination functions
asyncAllOf — returns a Future that completes when every Future in an array completes.
asyncAnyOf — returns a Future that completes when any one Future in an array completes first.
Timeout (Future methods)
Attach deadlines to a single Future.
orTimeout — fails the Future if it does not complete within a timeout.
completeOnTimeout — completes with a default value if the Future does not finish in time.
Chaining — async (executor)
Run the next stage on the async thread pool.
thenApplyAsync — map the result to a new value asynchronously.
thenAcceptAsync — run a side-effect callback with the result asynchronously.
thenRunAsync — run a parameterless action asynchronously after completion.
thenComposeAsync — flat-map to another Future asynchronously.
thenCombineAsync — when two futures complete, combine both results asynchronously.
thenAcceptBothAsync — run a side effect with both results asynchronously.
runAfterBothAsync — run a parameterless action after both futures complete.
applyToEitherAsync — use whichever future completes first, map the value asynchronously.
acceptEitherAsync — consume the first completing result asynchronously.
runAfterEitherAsync — run a parameterless action after either future completes.
Completion and errors — async
Observe or recover from completion on the async executor.
whenCompleteAsync — run a callback with result and error when complete.
handleAsync — map result and error to a new value asynchronously.
exceptionallyAsync — map failures to a recovery value asynchronously.
exceptionallyComposeAsync — map failures to a recovery Future asynchronously.
Quick reference table
| Function or method | Summary |
|---|---|
| asyncAllOf | Wait for all futures in an array. |
| asyncAnyOf | Complete when any future in an array finishes first. |
| orTimeout | Fail if the stage exceeds a time limit. |
| completeOnTimeout | Supply a default value on timeout. |
| thenApplyAsync | Async map of the successful value. |
| thenAcceptAsync | Async side effect with the value. |
| thenRunAsync | Async parameterless follow-up. |
| thenComposeAsync | Async flat-map to another Future. |
| thenCombineAsync | Async merge of two successful results. |
| thenAcceptBothAsync | Async side effect with both values. |
| runAfterBothAsync | Async action after both complete. |
| applyToEitherAsync | Async map of the first completing value. |
| acceptEitherAsync | Async consume the first completing value. |
| runAfterEitherAsync | Async action after either completes. |
| whenCompleteAsync | Async observe completion (result and error). |
| handleAsync | Async fold result or error into a new value. |
| exceptionallyAsync | Async recover from failure with a value. |
| exceptionallyComposeAsync | Async recover from failure with a Future. |
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