Package com.mongodb.client.model

Class Accumulators

java.lang.Object
com.mongodb.client.model.Accumulators
@Deprecated(since="2021-05-27") public final class Accumulators extends Object
Deprecated.
Usage of this API is not supported in AEM as a Cloud Service.
Builders for accumulators used in the group pipeline stage of an aggregation pipeline.
Since:
3.1

  • Method Summary

    Modifier and Type
    Method
    Description
    static <TExpression>
    BsonField
    addToSet(String fieldName, TExpression expression)
    Deprecated.
    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.
    static <TExpression>
    BsonField
    avg(String fieldName, TExpression expression)
    Deprecated.
    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.
    static <TExpression>
    BsonField
    first(String fieldName, TExpression expression)
    Deprecated.
    Gets a field name for a $group operation representing the value of the given expression when applied to the first member of the group.
    static <TExpression>
    BsonField
    last(String fieldName, TExpression expression)
    Deprecated.
    Gets a field name for a $group operation representing the value of the given expression when applied to the last member of the group.
    static <TExpression>
    BsonField
    max(String fieldName, TExpression expression)
    Deprecated.
    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.
    static <TExpression>
    BsonField
    min(String fieldName, TExpression expression)
    Deprecated.
    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.
    static <TExpression>
    BsonField
    push(String fieldName, TExpression expression)
    Deprecated.
    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.
    static <TExpression>
    BsonField
    stdDevPop(String fieldName, TExpression expression)
    Deprecated.
    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.
    static <TExpression>
    BsonField
    stdDevSamp(String fieldName, TExpression expression)
    Deprecated.
    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.
    static <TExpression>
    BsonField
    sum(String fieldName, TExpression expression)
    Deprecated.
    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.

    Methods inherited from class java.lang.Object

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

  • Method Details

    • sum

      public static <TExpression> BsonField sum(String fieldName, TExpression expression)
      Deprecated.
      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.
      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field

    • avg

      public static <TExpression> BsonField avg(String fieldName, TExpression expression)
      Deprecated.
      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.
      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field

    • first

      public static <TExpression> BsonField first(String fieldName, TExpression expression)
      Deprecated.
      Gets a field name for a $group operation representing the value of the given expression when applied to the first member of the group.
      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field

    • last

      public static <TExpression> BsonField last(String fieldName, TExpression expression)
      Deprecated.
      Gets a field name for a $group operation representing the value of the given expression when applied to the last member of the group.
      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field

    • max

      public static <TExpression> BsonField max(String fieldName, TExpression expression)
      Deprecated.
      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.
      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field

    • min

      public static <TExpression> BsonField min(String fieldName, TExpression expression)
      Deprecated.
      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.
      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field

    • push

      public static <TExpression> BsonField push(String fieldName, TExpression expression)
      Deprecated.
      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.
      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field

    • addToSet

      public static <TExpression> BsonField addToSet(String fieldName, TExpression expression)
      Deprecated.
      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.
      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field

    • stdDevPop

      public static <TExpression> BsonField stdDevPop(String fieldName, TExpression expression)
      Deprecated.
      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.

      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field
      Since:
      3.2

    • stdDevSamp

      public static <TExpression> BsonField stdDevSamp(String fieldName, TExpression expression)
      Deprecated.
      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.

      Type Parameters:
      TExpression - the expression type
      Parameters:
      fieldName - the field name
      expression - the expression
      Returns:
      the field
      Since:
      3.2