| Class | Description | 
|---|---|
| DatumFromMetadataAsDocumentProcessor | 
 Uses index and type in metadata map stored in datum document to populate current document into datums. 
 | 
| DatumFromMetadataProcessor | 
 Uses index and type in metadata to populate current document into datums. 
 | 
| DocumentToMetadataProcessor | 
 Moves a json representation of metadata out of the document to the metadata field. 
 | 
| MetadataFromDocumentProcessor | 
 Examines document to derive metadata fields. 
 | 
| PercolateTagProcessor | 
 References:
 Some helpful references to help
 Purpose              URL
 -------------        ----------------------------------------------------------------
 [Status Codes]       http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
 [Test Cases]         http://greenbytes.de/tech/tc/httpredirects/
 [t.co behavior]      https://dev.twitter.com/docs/tco-redirection-behavior 
 | 
| PercolateTagProcessor.PercolateQueryBuilder | 
| Enum | Description | 
|---|---|
| PercolateTagProcessor.FilterLevel | 
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