Interface BootstrapRegistry.InstanceSupplier<T>

Type Parameters:

T - the instance type

Enclosing interface:

BootstrapRegistry

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface BootstrapRegistry.InstanceSupplier<T>

Supplier used to provide the actual instance when needed.

Since:

2.4.0

Author:

Phillip Webb

See Also:

• BootstrapRegistry.Scope

Method Summary

Modifier and Type	Method	Description
static <T> BootstrapRegistry.InstanceSupplier<T>	from(@Nullable Supplier<T> supplier)	Factory method that can be used to create an BootstrapRegistry.InstanceSupplier from a Supplier.
@Nullable T	get(BootstrapContext context)	Factory method used to create the instance when needed.
default BootstrapRegistry.Scope	getScope()	Return the scope of the supplied instance.
static <T> BootstrapRegistry.InstanceSupplier<T>	of(@Nullable T instance)	Factory method that can be used to create an BootstrapRegistry.InstanceSupplier for a given instance.
default BootstrapRegistry.InstanceSupplier<T>	withScope(BootstrapRegistry.Scope scope)	Return a new BootstrapRegistry.InstanceSupplier with an updated BootstrapRegistry.Scope.

Method Details

get

@Nullable T get(BootstrapContext context)

Factory method used to create the instance when needed.

Parameters:

context - the BootstrapContext which may be used to obtain other bootstrap instances.

Returns:

the instance or null

getScope

default BootstrapRegistry.Scope getScope()

Return the scope of the supplied instance.

Returns:

the scope

Since:

2.4.2

withScope

default BootstrapRegistry.InstanceSupplier<T> withScope(BootstrapRegistry.Scope scope)

Return a new BootstrapRegistry.InstanceSupplier with an updated BootstrapRegistry.Scope.

Parameters:

scope - the new scope

Returns:

a new BootstrapRegistry.InstanceSupplier instance with the new scope

Since:

2.4.2

of

static <T> BootstrapRegistry.InstanceSupplier<T> of(@Nullable T instance)

Factory method that can be used to create an BootstrapRegistry.InstanceSupplier for a given instance.

Type Parameters:

T - the instance type

Parameters:

instance - the instance

Returns:

a new BootstrapRegistry.InstanceSupplier

from

static <T> BootstrapRegistry.InstanceSupplier<T> from(@Nullable Supplier<T> supplier)

Factory method that can be used to create an BootstrapRegistry.InstanceSupplier from a Supplier.

Type Parameters:

T - the instance type

Parameters:

supplier - the supplier that will provide the instance

Returns:

a new BootstrapRegistry.InstanceSupplier