# Part II. Reference

This section provides the detailed API of the Tracker Miner library.

Table of Contents

Basics and foundations
  Enumerations — Common enumerations
Base abstract miner classes
  TrackerMiner — Abstract base class for data miners
  TrackerMinerOnline — Abstract base class for miners connecting to online resources
  TrackerDataProvider — Provide data to be indexed
  TrackerEnumerator — Enumerate resources
  TrackerDecorator — A miner tasked with listening for DB resource changes and extracting metadata
  TrackerIndexingTree — Indexing tree handling
Miner classes for file system
  TrackerMinerFS — Abstract base class for filesystem miners
  TrackerFileDataProvider — File based data provider for file:// descendant URIs
  TrackerFileEnumerator — File based enumerator for file:// descendant URIs
  TrackerDecoratorFS — Filesystem implementation for TrackerDecorator
Utilities
  TrackerThumbnailer — Request the thumbnailer service creates or updates thumbnails.
  Media art management — Media art request and management.

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