# Package-level declarations

The interfaces for value providers.

#### Since

4.0

## Types

HasConfigurableValue
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interface HasConfigurableValue
Represents an object that holds a value that is configurable, meaning that the value or some source for the value, such as a Provider, can be specified directly on the object.
HasMultipleValues
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@SupportsKotlinAssignmentOverloading
interface HasMultipleValues<T> : HasConfigurableValue, SupportsConvention
Represents a property whose value can be set using multiple elements of type T, such as a collection property.
ListProperty
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@ManagedType
interface ListProperty<T> : Provider<List<T>> , HasMultipleValues<T>
Represents a property whose type is a List of elements of type T.
MapProperty
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@ManagedType
@SupportsKotlinAssignmentOverloading
interface MapProperty<K, V> : Provider<Map<K, V>> , HasConfigurableValue, SupportsConvention
Represents a property whose type is a Map of keys of type K and values of type V.
Property
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@ManagedType
@SupportsKotlinAssignmentOverloading
interface Property<T> : Provider<T> , HasConfigurableValue, SupportsConvention
A container object that represents a configurable value of a specific type.
Provider
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@NonExtensible
interface Provider<T>
A container object that provides a value of a specific type.
ProviderConvertible
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@NonExtensible
interface ProviderConvertible<T>
An object that can be converted to a Provider.
ProviderFactory
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@NonExtensible
@ServiceScope(value = Build::class)
interface ProviderFactory
A factory for creating instances of Provider.
SetProperty
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@ManagedType
interface SetProperty<T> : Provider<Set<T>> , HasMultipleValues<T>
Represents a property whose type is a Set of elements of type T.
SupportsConvention
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@Incubating
interface SupportsConvention
Marks a Gradle API custom type as supporting conventions.
ValueSource
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interface ValueSource<T, P : ValueSourceParameters?>
Represents an external source of information used by a Gradle build.
ValueSourceParameters
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interface ValueSourceParameters
Marker interface for parameter objects to ValueSources.
ValueSourceSpec
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interface ValueSourceSpec<P : ValueSourceParameters?>
Base configuration for value source definitions.