## Uses of Interface
org.apache.tapestry5.services.meta.MetaDataExtractor

- Packages that use MetaDataExtractor
  Package | Description
  --- | ---
  org.apache.tapestry5.internal.services.meta | [INTERNAL USE ONLY] metadata support classes; API subject to change
  org.apache.tapestry5.modules |
  org.apache.tapestry5.services.meta | Services for extracting component metadata.

- - ### Uses of MetaDataExtractor in org.apache.tapestry5.internal.services.meta

    Classes in org.apache.tapestry5.internal.services.meta that implement MetaDataExtractor
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `ContentTypeExtractor` |
    `class` | `MetaAnnotationExtractor` |
    `class` | `UnknownActivationContextExtractor` |

    Constructor parameters in org.apache.tapestry5.internal.services.meta with type arguments of type MetaDataExtractor
    Constructor | Description
    --- | ---
    `MetaWorkerImpl​(Map<Class,​MetaDataExtractor> configuration)` |

  - ### Uses of MetaDataExtractor in org.apache.tapestry5.modules

    Method parameters in org.apache.tapestry5.modules with type arguments of type MetaDataExtractor
    Modifier and Type | Method | Description
    --- | --- | ---
    `static void` | TapestryModule.`contributeMetaWorker​(MappedConfiguration<Class,​MetaDataExtractor> configuration)` | Contributes extractors for `Meta`, `Secure`, `ContentType` and `WhitelistAccessOnly` annotations.

  - ### Uses of MetaDataExtractor in org.apache.tapestry5.services.meta

    Classes in org.apache.tapestry5.services.meta that implement MetaDataExtractor
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `FixedExtractor<T extends Annotation>` | Implementation of `MetaDataExtractor` that is used to set a fixed value for a fixed meta-data key, when a given annotation is present.