ImportSelector (Spring Framework 5.2.12.RELEASE API)

所有已知子接口:
DeferredImportSelector
所有已知实现类:
AdviceModeImportSelector, AsyncConfigurationSelector, CachingConfigurationSelector, TransactionManagementConfigurationSelector
```
public interface ImportSelector
```
Interface to be implemented by types that determine which @Configuration class(es) should be imported based on a given selection criteria, usually one or more annotation attributes.
An ImportSelector may implement any of the following Aware interfaces, and their respective methods will be called prior to selectImports(org.springframework.core.type.AnnotationMetadata):
Alternatively, the class may provide a single constructor with one or more of the following supported parameter types:
ImportSelector implementations are usually processed in the same way as regular @Import annotations, however, it is also possible to defer selection of imports until all @Configuration classes have been processed (see DeferredImportSelector for details).
从以下版本开始:
3.1
作者:
Chris Beams, Juergen Hoeller
另请参阅:
DeferredImportSelector, Import, ImportBeanDefinitionRegistrar, Configuration

方法概要

所有方法实例方法抽象方法默认方法
修饰符和类型	方法	说明
`default Predicate<String>`	`getExclusionFilter()`	Return a predicate for excluding classes from the import candidates, to be transitively applied to all classes found through this selector's imports.
`String[]`	`selectImports(AnnotationMetadata importingClassMetadata)`	Select and return the names of which class(es) should be imported based on the `AnnotationMetadata` of the importing @`Configuration` class.

- 方法详细资料
  - selectImports
```
String[] selectImports(AnnotationMetadata importingClassMetadata)
```
    Select and return the names of which class(es) should be imported based on the AnnotationMetadata of the importing @Configuration class.
    返回:
    the class names, or an empty array if none
  - getExclusionFilter
```
@Nullable
default Predicate<String> getExclusionFilter()
```
    Return a predicate for excluding classes from the import candidates, to be transitively applied to all classes found through this selector's imports.
    If this predicate returns true for a given fully-qualified class name, said class will not be considered as an imported configuration class, bypassing class file loading as well as metadata introspection.
    返回:
    the filter predicate for fully-qualified candidate class names of transitively imported configuration classes, or null if none
    从以下版本开始:
    5.2.4