io.micronaut.core.beans

Interface BeanIntrospector

@Immutable
public interface BeanIntrospector

Primary interface for obtaining BeanIntrospection instances that are computed at compilation time.

Since:

1.0

Author:

graemerocher

See Also:

Introspected, BeanIntrospection

Field Summary

Fields

Modifier and Type	Field and Description
static BeanIntrospector	SHARED The default shared BeanIntrospector.

Method Summary

Modifier and Type	Method and Description
java.util.Collection<java.lang.Class<?>>	findIntrospectedTypes(java.util.function.Predicate<? super BeanIntrospectionReference<?>> filter) Finds introspections with the given filter.
<T> java.util.Optional<BeanIntrospection<T>>	findIntrospection(java.lang.Class<T> beanType) Find a BeanIntrospection for the given bean type.
default java.util.Collection<BeanIntrospection<java.lang.Object>>	findIntrospections(java.lang.Class<? extends java.lang.annotation.Annotation> stereotype) Finds introspections for classes annotated with the given stereotype.
default java.util.Collection<BeanIntrospection<java.lang.Object>>	findIntrospections(java.lang.Class<? extends java.lang.annotation.Annotation> stereotype, java.lang.String... packageNames) Finds introspections for classes annotated with the given stereotype.
java.util.Collection<BeanIntrospection<java.lang.Object>>	findIntrospections(java.util.function.Predicate<? super BeanIntrospectionReference<?>> filter) Finds introspections with the given filter.
static BeanIntrospector	forClassLoader(java.lang.ClassLoader classLoader) Creates a new default bean introspector that uses the given classloader.
default <T> BeanIntrospection<T>	getIntrospection(java.lang.Class<T> beanType) Retrieves an introspection for the given type.

Field Detail

SHARED

static final BeanIntrospector SHARED

The default shared BeanIntrospector.

Method Detail

forClassLoader

static BeanIntrospector forClassLoader(java.lang.ClassLoader classLoader)

Creates a new default bean introspector that uses the given classloader.

Parameters:

classLoader - The class loader to load introspections

Returns:

A new bean introspector

Since:

3.0.1

findIntrospections

@NonNull
java.util.Collection<BeanIntrospection<java.lang.Object>> findIntrospections(@NonNull
                                                                                      java.util.function.Predicate<? super BeanIntrospectionReference<?>> filter)

Finds introspections with the given filter.

Parameters:

filter - A filter that receives a BeanIntrospectionReference

Returns:

A collection of introspections

findIntrospectedTypes

@NonNull
java.util.Collection<java.lang.Class<?>> findIntrospectedTypes(@NonNull
                                                                        java.util.function.Predicate<? super BeanIntrospectionReference<?>> filter)

Finds introspections with the given filter.

Parameters:

filter - A filter that receives a BeanIntrospectionReference

Returns:

A collection of introspections

Since:

3.0

findIntrospection

@NonNull
<T> java.util.Optional<BeanIntrospection<T>> findIntrospection(@NonNull
                                                                        java.lang.Class<T> beanType)

Find a BeanIntrospection for the given bean type.

Type Parameters:

T - The bean generic type

Parameters:

beanType - The bean type

Returns:

An optional introspection

findIntrospections

@NonNull
default java.util.Collection<BeanIntrospection<java.lang.Object>> findIntrospections(@NonNull
                                                                                              java.lang.Class<? extends java.lang.annotation.Annotation> stereotype)

Finds introspections for classes annotated with the given stereotype.

Parameters:

stereotype - The stereotype

Returns:

The introspections

findIntrospections

@NonNull
default java.util.Collection<BeanIntrospection<java.lang.Object>> findIntrospections(@NonNull
                                                                                              java.lang.Class<? extends java.lang.annotation.Annotation> stereotype,
                                                                                              @NonNull
                                                                                              java.lang.String... packageNames)

Finds introspections for classes annotated with the given stereotype.

Parameters:

stereotype - The stereotype

packageNames - The package names to include in the search

Returns:

The introspections

getIntrospection

@NonNull
default <T> BeanIntrospection<T> getIntrospection(@NonNull
                                                           java.lang.Class<T> beanType)

Retrieves an introspection for the given type.

Type Parameters:

T - The bean generic type

Parameters:

beanType - The bean type

Returns:

The introspection

Throws:

IntrospectionException - If no introspection data is found and the bean is not annotated with Introspected