# Package-level declarations

Workers allow running pieces of work in the background, either in-process in isolated classloaders or out-of-process in reusable daemons.

#### Since

3.5

## Types

ClassLoaderWorkerSpec
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interface ClassLoaderWorkerSpec : WorkerSpec
A worker spec providing the requirements of an isolated classpath.
ForkingWorkerSpec
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interface ForkingWorkerSpec : WorkerSpec
A worker spec providing the requirements of a forked process.
IsolationMode
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enum IsolationMode
Isolation mode for workers.
ProcessWorkerSpec
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interface ProcessWorkerSpec : ForkingWorkerSpec, ClassLoaderWorkerSpec
A worker spec providing the requirements of a forked process with a custom classpath.
WorkAction
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interface WorkAction<T : WorkParameters?>
Represents the implementation of a unit of work to be used when submitting work to the WorkerExecutor.
WorkerExecutionException
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open class WorkerExecutionException : DefaultMultiCauseException
Indicates that a failure occurred during execution of work in a worker.
WorkerExecutor
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@ServiceScope(value = Project::class)
interface WorkerExecutor
Allows work to be submitted for asynchronous execution.
WorkerSpec
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interface WorkerSpec
Represents the common configuration of a worker.
WorkParameters
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interface WorkParameters
Marker interface for parameter objects to WorkActions.
WorkQueue
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interface WorkQueue
Represents a queue of work items with a uniform set of worker requirements.