# Uses of Package
org.apache.nutch.metadata

- Packages that use org.apache.nutch.metadata
  Package | Description
  --- | ---
  org.apache.nutch.indexer | Index content, configure and run indexing and cleaning jobs to add, update, and delete documents from an index.
  org.apache.nutch.metadata | A Multi-valued Metadata container, and set of constant fields for Nutch Metadata.
  org.apache.nutch.net.protocols | Helper classes related to the `Protocol` interface, see also `org.apache.nutch.protocol`.
  org.apache.nutch.parse | The `Parse` interface and related classes.
  org.apache.nutch.protocol | Classes related to the `Protocol` interface, see also `org.apache.nutch.net.protocols`.
  org.apache.nutch.protocol.htmlunit | Protocol plugin which supports retrieving documents via the http protocol.
  org.apache.nutch.protocol.httpclient | Protocol plugin which supports retrieving documents via the HTTP and HTTPS protocols, optionally with Basic, Digest and NTLM authentication schemes for web server as well as proxy server.
  org.apache.nutch.protocol.okhttp | Protocol plugin based on okhttp, supports http, https, http/2.
  org.apache.nutch.scoring.webgraph | Scoring implementation based on link analysis (`LinkRank`), see `WebGraph`.
  org.apache.nutch.segment | A segment stores all data from on generate/fetch/update cycle: fetch list, protocol status, raw content, parsed content, and extracted outgoing links.
  org.apache.nutch.tools | Miscellaneous tools.
  org.creativecommons.nutch | Sample plugins that parse and index Creative Commons medadata.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.indexer
  Class and Description
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.metadata
  Class and Description
  CreativeCommons A collection of Creative Commons properties names.
  DublinCore A collection of Dublin Core metadata names.
  Feed A collection of Feed property names extracted by the ROME library.
  HttpHeaders A collection of HTTP header names.
  Metadata A multi-valued metadata container.
  Nutch A collection of Nutch internal metadata constants.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.net.protocols
  Class and Description
  HttpHeaders A collection of HTTP header names.
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.parse
  Class and Description
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.protocol
  Class and Description
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.protocol.htmlunit
  Class and Description
  HttpHeaders A collection of HTTP header names.
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.protocol.httpclient
  Class and Description
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.protocol.okhttp
  Class and Description
  HttpHeaders A collection of HTTP header names.
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.scoring.webgraph
  Class and Description
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.segment
  Class and Description
  Metadata A multi-valued metadata container.
  MetaWrapper This is a simple decorator that adds metadata to any Writable-s that can be serialized by `NutchWritable`.

- Classes in org.apache.nutch.metadata used by org.apache.nutch.tools
  Class and Description
  Metadata A multi-valued metadata container.

- Classes in org.apache.nutch.metadata used by org.creativecommons.nutch
  Class and Description
  Metadata A multi-valued metadata container.

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