Package org.vaadin.miki.superfields.object.reflect

Class AnnotationMetadataProvider

java.lang.Object

org.vaadin.miki.superfields.object.reflect.AnnotationMetadataProvider

All Implemented Interfaces:

MetadataProvider

public class AnnotationMetadataProvider
extends Object
implements MetadataProvider

Provides PropertyMetadata based on previously registered annotations. Each field together with its setter and getter are scanned.

Since:

2022-09-01

Author:

miki

Constructor Summary

Constructors

Constructor	Description
AnnotationMetadataProvider()

Method Summary

Modifier and Type	Method	Description
Collection<PropertyMetadata>	getMetadata(String name, Field field, Method setter, Method getter)	Collects PropertyMetadata for a given property.
void	registerAnnotation(String name, Class<? extends Annotation> annotation)	Registers the given annotation to be discovered during scanning and maps it to a boolean PropertyMetadata.
<V, A extends Annotation> void	registerAnnotation(String name, Class<V> type, Class<A> annotation, com.vaadin.flow.function.SerializableFunction<A,V> valueFunction)	Registers the given annotation to be discovered during scanning and maps it to a PropertyMetadata.
final AnnotationMetadataProvider	withRegisteredAnnotation(String name, Class<? extends Annotation> annotation)	Chains registerAnnotation(String, Class) and returns itself.
final <V, A extends Annotation> AnnotationMetadataProvider	withRegisteredAnnotation(String name, Class<A> annotation, Class<V> type, com.vaadin.flow.function.SerializableFunction<A,V> valueFunction)	Chains registerAnnotation(String, Class, Class, SerializableFunction) and returns itself.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AnnotationMetadataProvider

public AnnotationMetadataProvider()

Method Details

getMetadata

public Collection<PropertyMetadata> getMetadata(String name,
 Field field,
 Method setter,
 Method getter)

Description copied from interface: MetadataProvider

Collects PropertyMetadata for a given property.

Specified by:

getMetadata in interface MetadataProvider

Parameters:

name - Name of the property.

field - A Field that corresponds to the property. Will not be null, but may not be accessible.

setter - A Method that is a setter for the given field. May be null if there is no setter.

getter - A Method that is a getter for the given field. May be null if there is no getter.

Returns:

A non-null, but possibly empty, collection of PropertyMetadata.

registerAnnotation

public <V,
A extends Annotation> void registerAnnotation(String name,
 Class<V> type,
 Class<A> annotation,
 com.vaadin.flow.function.SerializableFunction<A,V> valueFunction)

Registers the given annotation to be discovered during scanning and maps it to a PropertyMetadata.

Type Parameters:

A - Annotation type.

V - Metadata value type.

Parameters:

name - Name of the metadata.

type - Value type of the metadata.

annotation - Annotation to map.

valueFunction - Function to obtain the value from the given annotation.

withRegisteredAnnotation

public final <V,
A extends Annotation>
AnnotationMetadataProvider withRegisteredAnnotation(String name,
 Class<A> annotation,
 Class<V> type,
 com.vaadin.flow.function.SerializableFunction<A,V> valueFunction)

Chains registerAnnotation(String, Class, Class, SerializableFunction) and returns itself.

Type Parameters:

A - Annotation type.

V - Metadata value type.

Parameters:

name - Name of the metadata.

type - Value type of the metadata.

annotation - Annotation to map.

valueFunction - Function to obtain the value from the given annotation.

Returns:

This.

See Also:

• registerAnnotation(String, Class, Class, SerializableFunction)

registerAnnotation

public void registerAnnotation(String name,
 Class<? extends Annotation> annotation)

Registers the given annotation to be discovered during scanning and maps it to a boolean PropertyMetadata. Only the presence of the annotation will result in creation of the metadata and setting its value to true. This means that the absence of the annotation will not create the metadata.

Parameters:

name - Name of the metadata.

annotation - Annotation to map.

withRegisteredAnnotation

public final AnnotationMetadataProvider withRegisteredAnnotation(String name,
 Class<? extends Annotation> annotation)

Chains registerAnnotation(String, Class) and returns itself.

Parameters:

name - Name of the metadata.

annotation - Annotation to map.

Returns:

This.

See Also:

• registerAnnotation(String, Class)