Package com.mongodb

Class MapReduceOutput

  • @Deprecated(since="2021-05-27")
public class MapReduceOutput
extends java.lang.Object
    Deprecated.
    Usage of this API is not supported in AEM as a Cloud Service.
    Represents the result of a map/reduce operation. Users should interact with the results of the map reduce via the results() method, or by interacting directly with the collection the results were input into.

    • Method Summary

      All Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      void drop()
      Deprecated.
      Drops the collection that holds the results.
      java.lang.String getCollectionName()
      Deprecated.
      Get the name of the collection that the results of the map reduce were saved into.
      DBObject getCommand()
      Deprecated.
      Get the original command that was sent to the database.
      java.lang.String getDatabaseName()
      Deprecated.
      Get the name of the database that the results of the map reduce were saved into.
      int getDuration()
      Deprecated.
      Get the amount of time, in milliseconds, that it took to run this map reduce.
      int getEmitCount()
      Deprecated.
      Get the number of messages emitted from the provided map function.
      int getInputCount()
      Deprecated.
      Get the number of documents that were input into the map reduce operation
      DBCollection getOutputCollection()
      Deprecated.
      Gets the collection that holds the results (Will return null if results are Inline).
      int getOutputCount()
      Deprecated.
      Get the number of documents generated as a result of this map reduce
      java.lang.Iterable<DBObject> results()
      Deprecated.
      Returns an iterable containing the results of the operation.
      java.lang.String toString()
      Deprecated.
       

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Method Detail

      • results

        public java.lang.Iterable<DBObject> results()
        Deprecated.
        Returns an iterable containing the results of the operation.
        Returns:
        the results in iterable form

      • drop

        public void drop()
        Deprecated.
        Drops the collection that holds the results. Does nothing if the map-reduce returned the results inline.

      • getOutputCollection

        public DBCollection getOutputCollection()
        Deprecated.
        Gets the collection that holds the results (Will return null if results are Inline).
        Returns:
        the collection or null

      • getCommand

        public DBObject getCommand()
        Deprecated.
        Get the original command that was sent to the database.
        Returns:
        a DBObject containing the values of the original map-reduce command.

      • toString

        public java.lang.String toString()
        Deprecated.
        Overrides:
        toString in class java.lang.Object

      • getCollectionName

        @Nullable
public final java.lang.String getCollectionName()
        Deprecated.
        Get the name of the collection that the results of the map reduce were saved into. If the map reduce was an inline operation (i.e . the results were returned directly from calling the map reduce) this will return null.
        Returns:
        the name of the collection that the map reduce results are stored in

      • getDatabaseName

        public java.lang.String getDatabaseName()
        Deprecated.
        Get the name of the database that the results of the map reduce were saved into. If the map reduce was an inline operation (i.e . the results were returned directly from calling the map reduce) this will return null.
        Returns:
        the name of the database that holds the collection that the map reduce results are stored in

      • getDuration

        public int getDuration()
        Deprecated.
        Get the amount of time, in milliseconds, that it took to run this map reduce.
        Returns:
        an int representing the number of milliseconds it took to run the map reduce operation

      • getInputCount

        public int getInputCount()
        Deprecated.
        Get the number of documents that were input into the map reduce operation
        Returns:
        the number of documents that read while processing this map reduce

      • getOutputCount

        public int getOutputCount()
        Deprecated.
        Get the number of documents generated as a result of this map reduce
        Returns:
        the number of documents output by the map reduce

      • getEmitCount

        public int getEmitCount()
        Deprecated.
        Get the number of messages emitted from the provided map function.
        Returns:
        the number of items emitted from the map function