## Uses of Class
org.apache.nutch.util.AbstractChecker

- Packages that use AbstractChecker
  Package | Description
  --- | ---
  org.apache.nutch.crawl | Crawl control code and tools to run the crawler.
  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.net | Web-related interfaces: URL `filters` and `normalizers`.
  org.apache.nutch.parse | The `Parse` interface and related classes.

- - ### Uses of AbstractChecker in org.apache.nutch.crawl

    Subclasses of AbstractChecker in org.apache.nutch.crawl
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `CrawlDbReader` | Read utility for the CrawlDB.
    `class` | `LinkDbReader` | Read utility for the LinkDb.

  - ### Uses of AbstractChecker in org.apache.nutch.indexer

    Subclasses of AbstractChecker in org.apache.nutch.indexer
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `IndexingFiltersChecker` | Reads and parses a URL and run the indexers on it.

  - ### Uses of AbstractChecker in org.apache.nutch.net

    Subclasses of AbstractChecker in org.apache.nutch.net
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `URLFilterChecker` | Checks one given filter or all filters.
    `class` | `URLNormalizerChecker` | Checks one given normalizer or all normalizers.

  - ### Uses of AbstractChecker in org.apache.nutch.parse

    Subclasses of AbstractChecker in org.apache.nutch.parse
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `ParserChecker` | Parser checker, useful for testing parser.