t

reactivemongo.api.commands

AggregationFramework

trait AggregationFramework[P <: SerializationPack] extends ImplicitCommandHelpers[P] with GroupAggregation[P] with AggregationPipeline[P]

Implements the Aggregation Framework.

Linear Supertypes
AggregationPipeline[P], GroupAggregation[P], ImplicitCommandHelpers[P], AnyRef, Any
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  1. AggregationFramework
  2. AggregationPipeline
  3. GroupAggregation
  4. ImplicitCommandHelpers
  5. AnyRef
  6. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Type Members

  1. case class AddFieldToSet extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  2. case class AddFields extends PipelineOperator with Product with Serializable

    Since MongoDB 3.4

    Since MongoDB 3.4

    Definition Classes
    GroupAggregation
    See also

    https://docs.mongodb.com/manual/reference/operator/aggregation/addFields/

  3. case class AddToSet extends GroupFunction with Product with Serializable

    Definition Classes
    GroupAggregation
  4. case class Ascending(field: String) extends SortOrder with Product with Serializable

    Ascending sort order

  5. case class Avg extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  6. case class AvgField extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  7. case class BucketAuto(groupBy: P.Value, buckets: Int, granularity: Option[String])(output: (String, AggregationFramework.GroupFunction)*) extends PipelineOperator with Product with Serializable

    Since MongoDB 3.4 Categorizes incoming documents into a specific number of groups, called buckets, based on a specified expression.

    Since MongoDB 3.4 Categorizes incoming documents into a specific number of groups, called buckets, based on a specified expression. Bucket boundaries are automatically determined in an attempt to evenly distribute the documents into the specified number of buckets. Document fields identifier must be prefixed with $. https://docs.mongodb.com/manual/reference/operator/aggregation/bucketAuto/

  8. case class Descending(field: String) extends SortOrder with Product with Serializable

    Descending sort order

  9. case class Filter(input: P.Value, as: String, cond: P.Document) extends PipelineOperator with Product with Serializable

    The $filter aggregation stage.

    The $filter aggregation stage.

    input

    the expression that resolves to an array

    as

    The variable name for the element in the input array. The as expression accesses each element in the input array by this variable.

    cond

    the expression that determines whether to include the element in the resulting array

  10. case class First extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  11. case class FirstField extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  12. case class GeoNear(near: P.Value, spherical: Boolean = false, limit: Long = 100, minDistance: Option[Long] = None, maxDistance: Option[Long] = None, query: Option[P.Document] = None, distanceMultiplier: Option[Double] = None, uniqueDocs: Boolean = false, distanceField: Option[String] = None, includeLocs: Option[String] = None) extends PipelineOperator with Product with Serializable

    Outputs documents in order of nearest to farthest from a specified point.

    Outputs documents in order of nearest to farthest from a specified point.

    http://docs.mongodb.org/manual/reference/operator/aggregation/geoNear/#pipe._S_geoNear

    near

    the point for which to find the closest documents

    spherical

    if using a 2dsphere index

    limit

    the maximum number of documents to return

    maxDistance

    the maximum distance from the center point that the documents can be

    query

    limits the results to the matching documents

    distanceMultiplier

    the factor to multiply all distances returned by the query

    uniqueDocs

    if this value is true, the query returns a matching document once

    distanceField

    the output field that contains the calculated distance

    includeLocs

    this specifies the output field that identifies the location used to calculate the distance

  13. case class GraphLookup(from: String, startWith: P.Value, connectFromField: String, connectToField: String, as: String, maxDepth: Option[Int] = None, depthField: Option[String] = None, restrictSearchWithMatch: Option[P.Value] = None) extends PipelineOperator with Product with Serializable

    _Since MongoDB 3.4:_ The $graphLookup aggregation stage.

    _Since MongoDB 3.4:_ The $graphLookup aggregation stage.

    from

    the target collection for the $graphLookup operation to search

    startWith

    the expression that specifies the value of the connectFromField with which to start the recursive search

    connectFromField

    the field name whose value $graphLookup uses to recursively match against the connectToField of other documents in the collection

    connectToField

    the field name in other documents against which to match the value of the field specified by the connectFromField parameter

    as

    the name of the array field added to each output document

    maxDepth

    an optional non-negative integral number specifying the maximum recursion depth

    depthField

    an optional name for a field to add to each traversed document in the search path

    restrictSearchWithMatch

    an optional filter expression

  14. case class Group(identifiers: P.Value)(ops: (String, AggregationFramework.GroupFunction)*) extends PipelineOperator with Product with Serializable

    Groups documents together to calculate aggregates on document collections.

    Groups documents together to calculate aggregates on document collections. This command aggregates on arbitrary identifiers. Document fields identifier must be prefixed with $. http://docs.mongodb.org/manual/reference/aggregation/group/#_S_group

    identifiers

    any BSON value acceptable by mongodb as identifier

    ops

    the sequence of operators specifying aggregate calculation

  15. case class GroupField(idField: String)(ops: (String, AggregationFramework.GroupFunction)*) extends PipelineOperator with Product with Serializable

    Groups documents together to calculate aggregates on document collections.

    Groups documents together to calculate aggregates on document collections. This command aggregates on one field. http://docs.mongodb.org/manual/reference/aggregation/group/#_S_group

    idField

    the name of the field to aggregate on

    ops

    the sequence of operators specifying aggregate calculation

  16. sealed trait GroupFunction extends AnyRef

    Represents one of the group/accumulator operators, for the $group aggregation.

    Represents one of the group/accumulator operators, for the $group aggregation. Operation.

    Definition Classes
    GroupAggregation
    See also

    https://docs.mongodb.com/manual/reference/operator/aggregation/group/#accumulator-operator

  17. case class GroupMulti(idFields: (String, String)*)(ops: (String, AggregationFramework.GroupFunction)*) extends PipelineOperator with Product with Serializable

    Groups documents together to calculate aggregates on document collections.

    Groups documents together to calculate aggregates on document collections. This command aggregates on multiple fields, and they must be named. http://docs.mongodb.org/manual/reference/aggregation/group/#_S_group

    idFields

    The fields to aggregate on, and the names they should be aggregated under.

    ops

    the sequence of operators specifying aggregate calculation

  18. case class IndexStatAccesses(ops: Long, since: Long) extends Product with Serializable

    ops

    the number of operations that used the index

    since

    the time from which MongoDB gathered the statistics

  19. case class IndexStatsResult(name: String, key: P.Document, host: String, accesses: IndexStatAccesses) extends Product with Serializable

    name

    the index name

    key

    the key specification

    host

    the hostname and port of the mongod

    accesses

    the index statistics

  20. case class Last extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  21. case class LastField extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  22. case class Limit(limit: Int) extends PipelineOperator with Product with Serializable

    Limits the number of documents that pass through the stream.

    Limits the number of documents that pass through the stream. http://docs.mongodb.org/manual/reference/aggregation/limit/#_S_limit

    limit

    the number of documents to allow through

  23. case class Lookup(from: String, localField: String, foreignField: String, as: String) extends PipelineOperator with Product with Serializable

    _Since MongoDB 3.2:_ Performs a left outer join to an unsharded collection in the same database to filter in documents from the "joined" collection for processing.

    _Since MongoDB 3.2:_ Performs a left outer join to an unsharded collection in the same database to filter in documents from the "joined" collection for processing. https://docs.mongodb.com/v3.2/reference/operator/aggregation/lookup/#pipe._S_lookup

    from

    the collection to perform the join with

    localField

    the field from the documents input

    foreignField

    the field from the documents in the from collection

    as

    the name of the new array field to add to the input documents

  24. case class Match(predicate: P.Document) extends PipelineOperator with Product with Serializable

    Filters out documents from the stream that do not match the predicate.

    Filters out documents from the stream that do not match the predicate. http://docs.mongodb.org/manual/reference/aggregation/match/#_S_match

    predicate

    the query that documents must satisfy to be in the stream

  25. case class Max extends GroupFunction with Product with Serializable

    Definition Classes
    GroupAggregation
  26. case class MaxField extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  27. sealed trait MetadataKeyword extends AnyRef

    Keyword of metadata.

  28. case class MetadataSort(field: String, keyword: MetadataKeyword) extends SortOrder with Product with Serializable

    Metadata sort order.

    keyword

    the metadata keyword to sort by

  29. case class Min extends GroupFunction with Product with Serializable

    Definition Classes
    GroupAggregation
  30. case class MinField extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  31. case class Out(collection: String) extends PipelineOperator with Product with Serializable

    Takes the documents returned by the aggregation pipeline and writes them to a specified collection http://docs.mongodb.org/manual/reference/operator/aggregation/out/#pipe._S_out

    Takes the documents returned by the aggregation pipeline and writes them to a specified collection http://docs.mongodb.org/manual/reference/operator/aggregation/out/#pipe._S_out

    collection

    the name of the output collection

  32. trait PipelineOperator extends AnyRef

    One of MongoDBs pipeline operators for aggregation.

    One of MongoDBs pipeline operators for aggregation. Sealed as these are defined in the MongoDB specifications, and clients should not have custom operators.

    Definition Classes
    AggregationPipeline
  33. case class Project(specifications: P.Document) extends PipelineOperator with Product with Serializable

    Reshapes a document stream by renaming, adding, or removing fields.

    Reshapes a document stream by renaming, adding, or removing fields. Also uses Project to create computed values or sub-objects.

    specifications

    The fields to include. The resulting objects will contain only these fields.

  34. case class Push extends GroupFunction with Product with Serializable

    Definition Classes
    GroupAggregation
  35. case class PushField extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  36. case class Redact(expression: P.Document) extends PipelineOperator with Product with Serializable

    Restricts the contents of the documents based on information stored in the documents themselves.

    Restricts the contents of the documents based on information stored in the documents themselves. http://docs.mongodb.org/manual/reference/operator/aggregation/redact/#pipe._S_redact Redact

    expression

    the redact expression

  37. case class ReplaceRoot(newRoot: P.Document) extends PipelineOperator with Product with Serializable

    Promotes a specified document to the top level and replaces all other fields.

    Promotes a specified document to the top level and replaces all other fields. The operation replaces all existing fields in the input document, including the _id field. https://docs.mongodb.com/manual/reference/operator/aggregation/replaceRoot

    newRoot

    The new root object

  38. case class ReplaceRootField(newRoot: String) extends PipelineOperator with Product with Serializable

    Promotes a specified document to the top level and replaces all other fields.

    Promotes a specified document to the top level and replaces all other fields. The operation replaces all existing fields in the input document, including the _id field. https://docs.mongodb.com/manual/reference/operator/aggregation/replaceRoot

    newRoot

    The field name to become the new root

  39. case class Sample(size: Int) extends PipelineOperator with Product with Serializable

    Randomly selects the specified number of documents from its input.

    Randomly selects the specified number of documents from its input. https://docs.mongodb.org/master/reference/operator/aggregation/sample/

    size

    the number of documents to return

  40. case class Skip(skip: Int) extends PipelineOperator with Product with Serializable

    Skips over a number of documents before passing all further documents along the stream.

    Skips over a number of documents before passing all further documents along the stream. http://docs.mongodb.org/manual/reference/aggregation/skip/#_S_skip

    skip

    the number of documents to skip

  41. case class Sort(fields: SortOrder*) extends PipelineOperator with Product with Serializable

    Sorts the stream based on the given fields.

    Sorts the stream based on the given fields. http://docs.mongodb.org/manual/reference/aggregation/sort/#_S_sort

    fields

    the fields to sort by

  42. sealed trait SortOrder extends AnyRef

    Represents that a field should be sorted on, as well as whether it should be ascending or descending.

  43. case class StdDevPop extends GroupFunction with Product with Serializable

    The $stdDevPop group accumulator (since MongoDB 3.2)

    The $stdDevPop group accumulator (since MongoDB 3.2)

    Definition Classes
    GroupAggregation
  44. case class StdDevPopField extends GroupFunction with Product with Serializable

    The $stdDevPop for a single field (since MongoDB 3.2)

    The $stdDevPop for a single field (since MongoDB 3.2)

    Definition Classes
    GroupAggregation
  45. case class StdDevSamp extends GroupFunction with Product with Serializable

    The $stdDevSamp group accumulator (since MongoDB 3.2)

    The $stdDevSamp group accumulator (since MongoDB 3.2)

    Definition Classes
    GroupAggregation
  46. case class StdDevSampField extends GroupFunction with Product with Serializable

    The $stdDevSamp for a single field (since MongoDB 3.2)

    The $stdDevSamp for a single field (since MongoDB 3.2)

    Definition Classes
    GroupAggregation
  47. case class Sum extends GroupFunction with Product with Serializable

    Definition Classes
    GroupAggregation
  48. case class SumField extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
  49. class Unwind extends PipelineOperator with Product with Serializable with Serializable
  50. case class UnwindField(field: String) extends Unwind with Product with Serializable

    Turns a document with an array into multiple documents, one document for each element in the array.

    Turns a document with an array into multiple documents, one document for each element in the array. http://docs.mongodb.org/manual/reference/aggregation/unwind/#_S_unwind

    field

    the name of the array to unwind

  51. trait ImplicitlyDocumentProducer extends AnyRef
    Definition Classes
    ImplicitCommandHelpers
  52. case class Aggregate(pipeline: Seq[AggregationFramework.PipelineOperator], explain: Boolean = false, allowDiskUse: Boolean, cursor: Option[Cursor], wireVersion: MongoWireVersion, bypassDocumentValidation: Boolean, readConcern: Option[ReadConcern]) extends CollectionCommand with CommandWithPack[pack.type] with CommandWithResult[AggregationResult] with Product with Serializable

    pipeline

    the sequence of MongoDB aggregation operations

    explain

    specifies to return the information on the processing of the pipeline

    allowDiskUse

    enables writing to temporary files

    cursor

    the cursor object for aggregation

    bypassDocumentValidation

    available only if you specify the $out aggregation operator

    readConcern

    the read concern (since MongoDB 3.2)

    Annotations
    @deprecated
    Deprecated

    (Since version 0.12.7) Use api.collections.Aggregator

  53. case class AggregationResult(firstBatch: List[P.Document], cursor: Option[ResultCursor] = None) extends Product with Serializable

    firstBatch

    the documents of the first batch

    cursor

    the cursor from the result, if any

    Annotations
    @deprecated
    Deprecated

    (Since version 0.12.7) Use api.collections.Aggregator

    See also

    Cursor

  54. case class Cursor(batchSize: Int) extends Product with Serializable

    batchSize

    the initial batch size for the cursor

    Annotations
    @deprecated
    Deprecated

    (Since version 0.12.7) Use api.collections.Aggregator

  55. case class SumValue extends GroupFunction with Product with Serializable
    Definition Classes
    GroupAggregation
    Annotations
    @deprecated
    Deprecated

    (Since version 0.12.0) Use SumAll

Abstract Value Members

  1. abstract val pack: P
    Definition Classes
    AggregationPipeline

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def +(other: String): String
    Implicit
    This member is added by an implicit conversion from AggregationFramework[P] to any2stringadd[AggregationFramework[P]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (AggregationFramework[P], B)
    Implicit
    This member is added by an implicit conversion from AggregationFramework[P] to ArrowAssoc[AggregationFramework[P]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  5. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. lazy val builder: Builder[pack.type]
    Attributes
    protected
  8. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  9. def ensuring(cond: (AggregationFramework[P]) ⇒ Boolean, msg: ⇒ Any): AggregationFramework[P]
    Implicit
    This member is added by an implicit conversion from AggregationFramework[P] to Ensuring[AggregationFramework[P]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: (AggregationFramework[P]) ⇒ Boolean): AggregationFramework[P]
    Implicit
    This member is added by an implicit conversion from AggregationFramework[P] to Ensuring[AggregationFramework[P]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean, msg: ⇒ Any): AggregationFramework[P]
    Implicit
    This member is added by an implicit conversion from AggregationFramework[P] to Ensuring[AggregationFramework[P]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean): AggregationFramework[P]
    Implicit
    This member is added by an implicit conversion from AggregationFramework[P] to Ensuring[AggregationFramework[P]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  15. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  16. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from AggregationFramework[P] to StringFormat[AggregationFramework[P]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  17. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  18. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  19. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  20. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  21. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  22. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  23. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  24. def toString(): String
    Definition Classes
    AnyRef → Any
  25. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  27. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  28. def [B](y: B): (AggregationFramework[P], B)
    Implicit
    This member is added by an implicit conversion from AggregationFramework[P] to ArrowAssoc[AggregationFramework[P]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
  29. object Filter extends Serializable

    Filter companion

  30. object GroupFunction

    Factory to declare custom call to a group function.

    Factory to declare custom call to a group function.

    Definition Classes
    GroupAggregation
  31. object IndexStats extends PipelineOperator with Product with Serializable

    Since MongoDB 3.2 https://docs.mongodb.com/manual/reference/operator/aggregation/indexStats/

  32. object PipelineOperator

    Only for advanced user: Factory for stage not already provided in the API.

    Only for advanced user: Factory for stage not already provided in the API.

    For example for { $sample: { size: 2 } }

    PipelineOperator(BSONDocument("$sample" -> BSONDocument("size" -> 2)))
    Definition Classes
    AggregationPipeline
  33. object SumAll extends GroupFunction with Product with Serializable

    Sum operation of the form $sum: 1

    Sum operation of the form $sum: 1

    Definition Classes
    GroupAggregation
  34. object TextScore extends MetadataKeyword with Product with Serializable

    References the score associated with the corresponding $text query for each matching document.

  35. object Unwind extends Serializable
  36. object ImplicitlyDocumentProducer
    Definition Classes
    ImplicitCommandHelpers

Inherited from AggregationPipeline[P]

Inherited from GroupAggregation[P]

Inherited from ImplicitCommandHelpers[P]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from AggregationFramework[P] to any2stringadd[AggregationFramework[P]]

Inherited by implicit conversion StringFormat from AggregationFramework[P] to StringFormat[AggregationFramework[P]]

Inherited by implicit conversion Ensuring from AggregationFramework[P] to Ensuring[AggregationFramework[P]]

Inherited by implicit conversion ArrowAssoc from AggregationFramework[P] to ArrowAssoc[AggregationFramework[P]]

Ungrouped