org.apache.sling.models.spi

Interface Injector

@ConsumerType
public interface Injector

Service interface for pluggable value injectors.

Method Summary

Modifier and Type	Method and 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 Detail

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