Package com.mongodb

Enum MapReduceCommand.OutputType

java.lang.Object

java.lang.Enum<MapReduceCommand.OutputType>

com.mongodb.MapReduceCommand.OutputType

All Implemented Interfaces:

Serializable, Comparable<MapReduceCommand.OutputType>

Enclosing class:

MapReduceCommand

public static enum MapReduceCommand.OutputType
extends Enum<MapReduceCommand.OutputType>

Represents the different options available for outputting the results of a map-reduce operation.

MongoDB documentation

Output options

Enum Constant Summary

Enum Constants

Enum Constant	Description
INLINE	Return results inline, no result is written to the DB server
MERGE	Merge the job output with the existing contents of outputTarget collection
REDUCE	Reduce the job output with the existing contents of outputTarget collection
REPLACE	Save the job output to a collection, replacing its previous content

Method Summary

Modifier and Type	Method	Description
static MapReduceCommand.OutputType	valueOf(String name)	Returns the enum constant of this type with the specified name.
static MapReduceCommand.OutputType[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

REPLACE

public static final MapReduceCommand.OutputType REPLACE

Save the job output to a collection, replacing its previous content

MERGE

public static final MapReduceCommand.OutputType MERGE

Merge the job output with the existing contents of outputTarget collection

REDUCE

public static final MapReduceCommand.OutputType REDUCE

Reduce the job output with the existing contents of outputTarget collection

INLINE

public static final MapReduceCommand.OutputType INLINE

Return results inline, no result is written to the DB server

Method Detail

values

public static MapReduceCommand.OutputType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (MapReduceCommand.OutputType c : MapReduceCommand.OutputType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static MapReduceCommand.OutputType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null