AnnotationFormatterFactory (Spring Framework 5.2.12.RELEASE API)

类型参数:
A - the annotation type that should trigger formatting
所有已知实现类:
DateTimeFormatAnnotationFormatterFactory, JodaDateTimeFormatAnnotationFormatterFactory, Jsr310DateTimeFormatAnnotationFormatterFactory, Jsr354NumberFormatAnnotationFormatterFactory, NumberFormatAnnotationFormatterFactory
```
public interface AnnotationFormatterFactory<A extends Annotation>
```
A factory that creates formatters to format values of fields annotated with a particular Annotation.
For example, a DateTimeFormatAnnotationFormatterFactory might create a formatter that formats Date values set on fields annotated with @DateTimeFormat.
从以下版本开始:
3.0
作者:
Keith Donald

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`Set<Class<?>>`	`getFieldTypes()`	The types of fields that may be annotated with the <A> annotation.
`Parser<?>`	`getParser(A annotation, Class<?> fieldType)`	Get the Parser to parse a submitted value for a field of `fieldType` annotated with `annotation`.
`Printer<?>`	`getPrinter(A annotation, Class<?> fieldType)`	Get the Printer to print the value of a field of `fieldType` annotated with `annotation`.

- 方法详细资料
  - getFieldTypes
```
Set<Class<?>> getFieldTypes()
```
    The types of fields that may be annotated with the <A> annotation.
  - getPrinter
```
Printer<?> getPrinter(A annotation,
                      Class<?> fieldType)
```
    Get the Printer to print the value of a field of fieldType annotated with annotation.
    If the type T the printer accepts is not assignable to fieldType, a coercion from fieldType to T will be attempted before the Printer is invoked.
    参数:
    annotation - the annotation instance
    fieldType - the type of field that was annotated
    返回:
    the printer
  - getParser
```
Parser<?> getParser(A annotation,
                    Class<?> fieldType)
```
    Get the Parser to parse a submitted value for a field of fieldType annotated with annotation.
    If the object the parser returns is not assignable to fieldType, a coercion to fieldType will be attempted before the field is set.
    参数:
    annotation - the annotation instance
    fieldType - the type of field that was annotated
    返回:
    the parser