## 接口的使用
org.springframework.core.type.classreading.MetadataReaderFactory

- 使用MetadataReaderFactory的程序包
  程序包 | 说明
  --- | ---
  org.springframework.core.type.classreading | Support classes for reading annotation and class-level metadata.
  org.springframework.core.type.filter | Core support package for type filtering (e.g. for classpath scanning).

- - ### org.springframework.core.type.classreading中MetadataReaderFactory的使用

    实现MetadataReaderFactory的org.springframework.core.type.classreading中的类
    限定符和类型 | 类和说明
    --- | ---
    `class` | `CachingMetadataReaderFactory` Caching implementation of the `MetadataReaderFactory` interface, caching a `MetadataReader` instance per Spring `Resource` handle (i.e. per ".class" file).
    `class` | `SimpleMetadataReaderFactory` Simple implementation of the `MetadataReaderFactory` interface, creating a new ASM `ClassReader` for every request.

  - ### org.springframework.core.type.filter中MetadataReaderFactory的使用

    参数类型为MetadataReaderFactory的org.springframework.core.type.filter中的方法
    限定符和类型 | 方法和说明
    --- | ---
    `boolean` | AbstractClassTestingTypeFilter.`match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory)`
    `boolean` | AbstractTypeHierarchyTraversingFilter.`match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory)`
    `boolean` | AspectJTypeFilter.`match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory)`
    `boolean` | TypeFilter.`match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory)` Determine whether this filter matches for the class described by the given metadata.