org.mongodb.morphia

Class MapreduceResults<T>

java.lang.Object

org.mongodb.morphia.MapreduceResults<T>

Type Parameters:

T - the type of the results

All Implemented Interfaces:

Iterable<T>

public class MapreduceResults<T>
extends Object
implements Iterable<T>

Stores the results of a map reduce operation

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	MapreduceResults.Stats This class represents various statistics about a map reduce operation

Constructor Summary

Constructors

Constructor and Description
MapreduceResults(MapReduceOutput output) Creates a results instance for the given output

Method Summary

Modifier and Type	Method and Description
Query<T>	createQuery()
MapreduceResults.Stats	getCounts()
long	getElapsedMillis()
String	getError() Deprecated.
Iterator<T>	getInlineResults() Creates an Iterator over the results of the operation.
MapreduceType	getType()
boolean	isOk() Deprecated.
Iterator<T>	iterator() Creates an Iterator over the results of the operation.
void	setInlineRequiredOptions(Datastore datastore, Class<T> clazz, Mapper mapper, EntityCache cache) Sets the required options when the operation type was INLINE

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

MapreduceResults

public MapreduceResults(MapReduceOutput output)

Creates a results instance for the given output

Parameters:

output - the output of the operation

Method Detail

createQuery

public Query<T> createQuery()

Returns:

the query to use against these results

getCounts

public MapreduceResults.Stats getCounts()

Returns:

the Stats for the operation

getElapsedMillis

public long getElapsedMillis()

Returns:

the duration of the operation

getError

@Deprecated
public String getError()

Deprecated.

Returns:

will always return null

getInlineResults

public Iterator<T> getInlineResults()

Creates an Iterator over the results of the operation. This method should probably not be called directly as it requires more context to use properly. Using iterator() will return the proper Iterator regardless of the type of map reduce operation performed.

Returns:

the Iterator

See Also:

MapreduceType

getType

public MapreduceType getType()

Returns:

the type of the operation

isOk

@Deprecated
public boolean isOk()

Deprecated.

Returns:

will always return true

iterator

public Iterator<T> iterator()

Creates an Iterator over the results of the operation.

Specified by:

iterator in interface Iterable<T>

Returns:

the Iterator

setInlineRequiredOptions

public void setInlineRequiredOptions(Datastore datastore,
                                     Class<T> clazz,
                                     Mapper mapper,
                                     EntityCache cache)

Sets the required options when the operation type was INLINE

Parameters:

datastore - the Datastore to use when fetching this reference

clazz - the type of the results

mapper - the mapper to use

cache - the cache of entities seen so far

See Also:

MapreduceType