Package org.gradle.api.provider

Interface HasMultipleValues<T>

Type Parameters:

T - the type of elements.

All Superinterfaces:

HasConfigurableValue, SupportsConvention

All Known Subinterfaces:

ListProperty<T>, SetProperty<T>

@SupportsKotlinAssignmentOverloading
public interface HasMultipleValues<T>
extends HasConfigurableValue, SupportsConvention

Represents a property whose value can be set using multiple elements of type HasMultipleValues, such as a collection property.

Note: This interface is not intended for implementation by build script or plugin authors. You can use the factory methods on ObjectFactory to create various subtypes of this interface.

Since:

4.5

Method Summary

Modifier and Type	Method	Description
void	add(Provider<? extends T> provider)	Adds an element to the property value.
void	add(T element)	Adds an element to the property value.
void	addAll(java.lang.Iterable<? extends T> elements)	Adds zero or more elements to the property value.
void	addAll(Provider<? extends java.lang.Iterable<? extends T>> provider)	Adds zero or more elements to the property value.
void	addAll(T... elements)	Adds zero or more elements to the property value.
HasMultipleValues<T>	convention(java.lang.Iterable<? extends T> elements)	Specifies the value to use as the convention for this property.
HasMultipleValues<T>	convention(Provider<? extends java.lang.Iterable<? extends T>> provider)	Specifies the provider of the value to use as the convention for this property.
HasMultipleValues<T>	empty()	Sets the value of this property to an empty collection, and replaces any existing value.
void	finalizeValue()	Disallows further changes to the value of this property.
void	set(java.lang.Iterable<? extends T> elements)	Sets the value of the property to the elements of the given iterable, and replaces any existing value.
void	set(Provider<? extends java.lang.Iterable<? extends T>> provider)	Sets the property to have the same value of the given provider, and replaces any existing value.
HasMultipleValues<T>	value(java.lang.Iterable<? extends T> elements)	Sets the value of the property to the elements of the given iterable, and replaces any existing value.
HasMultipleValues<T>	value(Provider<? extends java.lang.Iterable<? extends T>> provider)	Sets the property to have the same value of the given provider, and replaces any existing value.

Methods inherited from interface org.gradle.api.provider.HasConfigurableValue

disallowChanges, disallowUnsafeRead, finalizeValueOnRead

Methods inherited from interface org.gradle.api.provider.SupportsConvention

unset, unsetConvention

Method Detail

set

void set(@Nullable
         java.lang.Iterable<? extends T> elements)

Sets the value of the property to the elements of the given iterable, and replaces any existing value. This property will query the elements of the iterable each time the value of this property is queried.

This method can also be used to discard the value of the property, by passing null as the value. The convention for this property, if any, will be used to provide the value instead.

Parameters:

elements - The elements, can be null.

set

void set(Provider<? extends java.lang.Iterable<? extends T>> provider)

Sets the property to have the same value of the given provider, and replaces any existing value. This property will track the value of the provider and query its value each time the value of this property is queried. When the provider has no value, this property will also have no value.

Parameters:

provider - Provider of the elements.

value

HasMultipleValues<T> value(@Nullable
                           java.lang.Iterable<? extends T> elements)

Sets the value of the property to the elements of the given iterable, and replaces any existing value. This property will query the elements of the iterable each time the value of this property is queried.

This is the same as set(Iterable) but returns this property to allow method chaining.

Parameters:

elements - The elements, can be null.

Returns:

this

Since:

5.6

value

HasMultipleValues<T> value(Provider<? extends java.lang.Iterable<? extends T>> provider)

Sets the property to have the same value of the given provider, and replaces any existing value. This property will track the value of the provider and query its value each time the value of this property is queried. When the provider has no value, this property will also have no value.

This is the same as set(Provider) but returns this property to allow method chaining.

Parameters:

provider - Provider of the elements.

Returns:

this

Since:

5.6

empty

HasMultipleValues<T> empty()

Sets the value of this property to an empty collection, and replaces any existing value.

Returns:

this property.

Since:

5.0

add

void add(T element)

Adds an element to the property value.

Parameters:

element - The element

add

void add(Provider<? extends T> provider)

Adds an element to the property value.

The given provider will be queried when the value of this property is queried. This property will have no value when the given provider has no value.

Parameters:

provider - The provider of an element

addAll

void addAll(T... elements)

Adds zero or more elements to the property value.

Parameters:

elements - The elements to add

Since:

4.10

addAll

void addAll(java.lang.Iterable<? extends T> elements)

Adds zero or more elements to the property value.

The given iterable will be queried when the value of this property is queried.

Parameters:

elements - The elements to add.

Since:

4.10

addAll

void addAll(Provider<? extends java.lang.Iterable<? extends T>> provider)

Adds zero or more elements to the property value.

The given provider will be queried when the value of this property is queried. This property will have no value when the given provider has no value.

Parameters:

provider - Provider of elements

convention

HasMultipleValues<T> convention(@Nullable
                                java.lang.Iterable<? extends T> elements)

Specifies the value to use as the convention for this property. The convention is used when no value has been set for this property.

Parameters:

elements - The elements, or null when the convention is that the property has no value.

Returns:

this

Since:

5.1

convention

HasMultipleValues<T> convention(Provider<? extends java.lang.Iterable<? extends T>> provider)

Specifies the provider of the value to use as the convention for this property. The convention is used when no value has been set for this property.

Parameters:

provider - The provider of the elements

Returns:

this

Since:

5.1

finalizeValue

void finalizeValue()

Disallows further changes to the value of this property. Calls to methods that change the value of this property, such as set(Iterable) or add(Object) will fail.

When this property has elements provided by a Provider, the value of the provider is queried when this method is called and the value of the provider will no longer be tracked.

Note that although the value of the property will not change, the resulting collection may contain mutable objects. Calling this method does not guarantee that the value will become immutable.

Specified by:

finalizeValue in interface HasConfigurableValue

Since:

5.0