Packages

o

org.mongodb.scala.model

Accumulators

object Accumulators

Builders for accumulators used in the group pipeline stage of an aggregation pipeline.

Since

1.0

See also

Aggregation pipeline

Accumulators

Expressions

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  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def addToSet[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing all unique values that results from applying the given expression to each document in a group of documents that share the same group by key.

    Gets a field name for a $group operation representing all unique values that results from applying the given expression to each document in a group of documents that share the same group by key.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    See also

    $addToSet

  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def avg[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing the average of the values of the given expression when applied to all members of the group.

    Gets a field name for a $group operation representing the average of the values of the given expression when applied to all members of the group.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    See also

    $avg

  7. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  8. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  9. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  10. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  11. def first[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing the value of the given expression when applied to the first member of the group.

    Gets a field name for a $group operation representing the value of the given expression when applied to the first member of the group.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    See also

    $first

  12. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  14. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  15. def last[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing the value of the given expression when applied to the last member of the group.

    Gets a field name for a $group operation representing the value of the given expression when applied to the last member of the group.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    See also

    $last

  16. def max[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing the maximum of the values of the given expression when applied to all members of the group.

    Gets a field name for a $group operation representing the maximum of the values of the given expression when applied to all members of the group.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    See also

    $max

  17. def min[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing the minimum of the values of the given expression when applied to all members of the group.

    Gets a field name for a $group operation representing the minimum of the values of the given expression when applied to all members of the group.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    See also

    $min

  18. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  20. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  21. def push[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing an array of all values that results from applying an expression to each document in a group of documents that share the same group by key.

    Gets a field name for a $group operation representing an array of all values that results from applying an expression to each document in a group of documents that share the same group by key.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    See also

    $push

  22. def stdDevPop[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing the sample standard deviation of the values of the given expression when applied to all members of the group.

    Gets a field name for a $group operation representing the sample standard deviation of the values of the given expression when applied to all members of the group.

    Use if the values encompass the entire population of data you want to represent and do not wish to generalize about a larger population.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    Since

    1.1

    Note

    Requires MongoDB 3.2 or greater

    See also

    $stdDevPop

  23. def stdDevSamp[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing the sample standard deviation of the values of the given expression when applied to all members of the group.

    Gets a field name for a $group operation representing the sample standard deviation of the values of the given expression when applied to all members of the group.

    Use if the values encompass a sample of a population of data from which to generalize about the population.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    Since

    1.1

    Note

    Requires MongoDB 3.2 or greater

    See also

    $stdDevSamp

  24. def sum[TExpression](fieldName: String, expression: TExpression): BsonField

    Gets a field name for a $group operation representing the sum of the values of the given expression when applied to all members of the group.

    Gets a field name for a $group operation representing the sum of the values of the given expression when applied to all members of the group.

    TExpression

    the expression type

    fieldName

    the field name

    expression

    the expression

    returns

    the field

    See also

    $sum

  25. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  26. def toString(): String
    Definition Classes
    AnyRef → Any
  27. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  28. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  29. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

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