# Uses of Package
org.apache.nutch.crawl

- Packages that use org.apache.nutch.crawl
  Package | Description
  --- | ---
  org.apache.nutch.crawl | Crawl control code and tools to run the crawler.
  org.apache.nutch.metadata | A Multi-valued Metadata container, and set of constant fields for Nutch Metadata.

- Classes in org.apache.nutch.crawl used by org.apache.nutch.crawl
  Class and Description
  AbstractFetchSchedule This class provides common methods for implementations of `FetchSchedule`.
  FetchSchedule This interface defines the contract for implementations that manipulate fetch times and re-fetch intervals.
  GeneratorJob.SelectorEntry
  InjectType
  NutchWritable
  Signature
  UrlWithScore A writable comparable container for an url with score.

- Classes in org.apache.nutch.crawl used by org.apache.nutch.metadata
  Class and Description
  NutchWritable

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