Package io.micronaut.core.beans

Interface BeanIntrospectionReference<T>

Type Parameters:

T - The bean type

All Superinterfaces:

AnnotationMetadataProvider, AnnotationSource, Named

All Known Implementing Classes:

AbstractBeanIntrospectionReference

@Internal
public interface BeanIntrospectionReference<T>
extends AnnotationMetadataProvider, Named

A reference to a BeanIntrospection that may or may not be present on the classpath.

This interface allows soft loading a BeanIntrospection without knowing if the class is present on the classpath or not. It also ensures that less memory is occupied as only a reference to the annotation metadata is retained and the full bean can be loaded via the load() method.

In general results of the load() do not need to be cached as object creation is cheap and no runtime analysis is performed so it is extremely fast.

Since:

1.1

Author:

graemerocher

Field Summary

Fields inherited from interface io.micronaut.core.annotation.AnnotationSource

EMPTY

Method Summary

Modifier and Type	Method	Description
@NonNull Class<T>	getBeanType()	The type.
boolean	isPresent()
@NonNull BeanIntrospection<T>	load()	Loads the introspection.

Methods inherited from interface io.micronaut.core.annotation.AnnotationMetadataProvider

findAnnotation, findAnnotation, findDeclaredAnnotation, findDeclaredAnnotation, getAnnotationMetadata, getTargetAnnotationMetadata, isAnnotationPresent, isDeclaredAnnotationPresent, synthesize, synthesizeAll, synthesizeAnnotationsByType, synthesizeDeclared, synthesizeDeclared, synthesizeDeclaredAnnotationsByType

Methods inherited from interface io.micronaut.core.annotation.AnnotationSource

getAnnotation, getAnnotation, getDeclaredAnnotation, getDeclaredAnnotation, isAnnotationPresent, isDeclaredAnnotationPresent, synthesize, synthesizeDeclared

Methods inherited from interface io.micronaut.core.naming.Named

getName

Method Details

isPresent

boolean isPresent()

Returns:

Is the introspection present?

getBeanType

@NonNull
@NonNull Class<T> getBeanType()

The type. The method isPresent() should be checked first.

Returns:

The type

Throws:

IntrospectionException - if the introspection cannot be loaded

load

@NonNull
@NonNull BeanIntrospection<T> load()

Loads the introspection.

Returns:

The loaded introspection.

Throws:

IntrospectionException - if the introspection cannot be loaded