map_reduce

Type Members

1. class MapReduceCollectionBasedResult extends MapReduceResult

   

2. case class MapReduceCommand(input: String = "", map: Imports.JSFunction = "", reduce: Imports.JSFunction = "", output: MapReduceOutputTarget = MapReduceInlineOutput, query: Option[Imports.DBObject] = None, sort: Option[Imports.DBObject] = None, limit: Option[Int] = None, finalizeFunction: Option[Imports.JSFunction] = None, jsScope: Option[Imports.DBObject] = None, verbose: Boolean = false, maxTime: Option[Duration] = None) extends Product with Serializable

   

   Case class for invoking MongoDB mapReduces.

   Case class for invoking MongoDB mapReduces.

   This wrapper class is used in it's place, and passed directly to a db.runCommand call.

   input

   the collection name to run the map reduce on

   map

   the map function (JSFunction is just a type alias for String)

   reduce

   the reduce function (JSFunction is just a type alias for String)

   output

   (optional) the location of the result of the map-reduce operation, defaults to inline. You can output to a collection, output to a collection with an action, or output inline.

   query

   (optional) the selection criteria for the documents input to the map function.

   sort

   (optional) the input documents, useful for optimization.

   limit

   (optional) the maximum number of documents to return from the collection before map reduce

   finalizeFunction

   (optional) the finalize function (JSFunction is just a type alias for String)

   jsScope

   (optional) global variables that are accessible in the map, reduce and finalize functions

   verbose

   (optional) include the timing information in the result information

   maxTime

   (optional) the maximum duration that the server will allow this operation to execute before killing it

   See also

   The MongoDB Map/Reduce Documentation

3. class MapReduceError extends MapReduceResult

   

4. class MapReduceException extends Imports.MongoException

   

5. class MapReduceInlineResult extends MapReduceCollectionBasedResult

   

6. case class MapReduceMergeOutput(collection: String) extends MapReduceOutputTarget with Product with Serializable

   

7. trait MapReduceOutputTarget extends AnyRef

   

8. case class MapReduceReduceOutput(collection: String) extends MapReduceOutputTarget with Product with Serializable

   

9. trait MapReduceResult extends Iterator[Imports.DBObject] with Logging

   

   Wrapper for MongoDB MapReduceResults, implementing iterator to allow direct iterator over the result set.

10. case class MapReduceStandardOutput(collection: String) extends MapReduceOutputTarget with Product with Serializable