Package org.apache.sling.models.spi

Interface Injector

All Known Implementing Classes:

BindingsInjector, ChildResourceInjector, ContextAwareConfigurationInjector, OSGiServiceInjector, RequestAttributeInjector, ResourcePathInjector, SelfInjector, SlingObjectInjector, ValueMapInjector

@ConsumerType
public interface Injector

Service interface for pluggable value injectors.

Method Summary

Modifier and Type	Method	Description
@NotNull String	getName()	Return a logical name for the injector.
@Nullable Object	getValue(@NotNull Object adaptable, String name, @NotNull Type declaredType, @NotNull AnnotatedElement element, @NotNull DisposalCallbackRegistry callbackRegistry)	Produce a value for an injection point.

Method Details

getName

@NotNull
@NotNull String getName()

Return a logical name for the injector. Used in resolving

@Source

annotations.

Returns:

the injector's name

getValue

@Nullable
@Nullable Object getValue(@NotNull
 @NotNull Object adaptable,
 String name,
 @NotNull
 @NotNull Type declaredType,
 @NotNull
 @NotNull AnnotatedElement element,
 @NotNull
 @NotNull DisposalCallbackRegistry callbackRegistry)

Produce a value for an injection point.

Parameters:

adaptable - the object which should be used as the basis for value resolution.

name - the injection point name (may be only null if injector implements the AcceptsNullName interface, otherwise never null)

declaredType - the declared type of the injection point

element - the injection point itself

callbackRegistry - a registry object to register a callback object which will be invoked when the adapted object is disposed.

Returns:

the value to be injected or null if no value could be resolved