org.springframework.data.mongodb.core.aggregation

Class AccumulatorOperators.AccumulatorOperatorFactory

java.lang.Object

org.springframework.data.mongodb.core.aggregation.AccumulatorOperators.AccumulatorOperatorFactory

Enclosing class:

AccumulatorOperators

public static class AccumulatorOperators.AccumulatorOperatorFactory
extends Object

Author:

Christoph Strobl

Constructor Summary

Constructors

Constructor and Description
AccumulatorOperatorFactory(AggregationExpression expression) Creates new AccumulatorOperators.AccumulatorOperatorFactory for given AggregationExpression.
AccumulatorOperatorFactory(String fieldReference) Creates new AccumulatorOperators.AccumulatorOperatorFactory for given fieldReference.

Method Summary

Modifier and Type	Method and Description
AccumulatorOperators.Avg	avg() Creates new AggregationExpression that takes the associated numeric value expression and returns the average value.
AccumulatorOperators.Max	max() Creates new AggregationExpression that takes the associated numeric value expression and returns the maximum value.
AccumulatorOperators.Min	min() Creates new AggregationExpression that takes the associated numeric value expression and returns the minimum value.
AccumulatorOperators.StdDevPop	stdDevPop() Creates new AggregationExpression that takes the associated numeric value expression and calculates the population standard deviation of the input values.
AccumulatorOperators.StdDevSamp	stdDevSamp() Creates new AggregationExpression that takes the associated numeric value expression and calculates the sample standard deviation of the input values.
AccumulatorOperators.Sum	sum() Creates new AggregationExpression that takes the associated numeric value expression and calculates and returns the sum.

Methods inherited from class java.lang.Object

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

Constructor Detail

AccumulatorOperatorFactory

public AccumulatorOperatorFactory(String fieldReference)

Creates new AccumulatorOperators.AccumulatorOperatorFactory for given fieldReference.

Parameters:

fieldReference - must not be null.

AccumulatorOperatorFactory

public AccumulatorOperatorFactory(AggregationExpression expression)

Creates new AccumulatorOperators.AccumulatorOperatorFactory for given AggregationExpression.

Parameters:

expression - must not be null.

Method Detail

sum

public AccumulatorOperators.Sum sum()

Creates new AggregationExpression that takes the associated numeric value expression and calculates and returns the sum.

Returns:

avg

public AccumulatorOperators.Avg avg()

Creates new AggregationExpression that takes the associated numeric value expression and returns the average value.

Returns:

max

public AccumulatorOperators.Max max()

Creates new AggregationExpression that takes the associated numeric value expression and returns the maximum value.

Returns:

min

public AccumulatorOperators.Min min()

Creates new AggregationExpression that takes the associated numeric value expression and returns the minimum value.

Returns:

stdDevPop

public AccumulatorOperators.StdDevPop stdDevPop()

Creates new AggregationExpression that takes the associated numeric value expression and calculates the population standard deviation of the input values.

Returns:

stdDevSamp

public AccumulatorOperators.StdDevSamp stdDevSamp()

Creates new AggregationExpression that takes the associated numeric value expression and calculates the sample standard deviation of the input values.

Returns: