AccumulatorOperators.StdDevPop (Spring Data MongoDB

java.lang.Object
- org.springframework.data.mongodb.core.aggregation.AccumulatorOperators.StdDevPop

All Implemented Interfaces:

AggregationExpression

Enclosing class:

AccumulatorOperators
```
public static class AccumulatorOperators.StdDevPop
extends Object
```
AggregationExpression for $stdDevPop.

Author:

Christoph Strobl

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`AccumulatorOperators.StdDevPop`	`and(AggregationExpression expression)` Creates new `AccumulatorOperators.StdDevSamp` with all previously added arguments appending the given one.
`AccumulatorOperators.StdDevPop`	`and(String fieldReference)` Creates new `AccumulatorOperators.StdDevPop` with all previously added arguments appending the given one.
`protected List<Object>`	`append(Object value)`
`protected Map<String,Object>`	`append(String key, Object value)`
`protected static List<Field>`	`asFields(String... fieldRefs)`
`protected String`	`getMongoMethod()`
`static AccumulatorOperators.StdDevPop`	`stdDevPopOf(AggregationExpression expression)` Creates new `AccumulatorOperators.StdDevPop` with all previously added arguments appending the given one.
`static AccumulatorOperators.StdDevPop`	`stdDevPopOf(String fieldReference)` Creates new `AccumulatorOperators.StdDevPop`.
`org.bson.Document`	`toDocument(AggregationOperationContext context)` Turns the `AggregationExpression` into a `Document` within the given `AggregationOperationContext`.
`org.bson.Document`	`toDocument(Object value, AggregationOperationContext context)`
`protected List<Object>`	`values()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getMongoMethod
```
protected String getMongoMethod()
```
  - stdDevPopOf
```
public static AccumulatorOperators.StdDevPop stdDevPopOf(String fieldReference)
```
    Creates new AccumulatorOperators.StdDevPop.
    
    Parameters:
    
    fieldReference - must not be null.
    
    Returns:
  - stdDevPopOf
```
public static AccumulatorOperators.StdDevPop stdDevPopOf(AggregationExpression expression)
```
    Creates new AccumulatorOperators.StdDevPop with all previously added arguments appending the given one.
    
    Parameters:
    
    expression - must not be null.
    
    Returns:
  - and
```
public AccumulatorOperators.StdDevPop and(String fieldReference)
```
    Creates new AccumulatorOperators.StdDevPop with all previously added arguments appending the given one.
    NOTE: Only possible in $project stage.
    
    Parameters:
    
    fieldReference - must not be null.
    
    Returns:
  - and
```
public AccumulatorOperators.StdDevPop and(AggregationExpression expression)
```
    Creates new AccumulatorOperators.StdDevSamp with all previously added arguments appending the given one.
    NOTE: Only possible in $project stage.
    
    Parameters:
    
    expression - must not be null.
    
    Returns:
  - toDocument
```
public org.bson.Document toDocument(Object value,
                                    AggregationOperationContext context)
```
  - toDocument
```
public org.bson.Document toDocument(AggregationOperationContext context)
```
    Description copied from interface: AggregationExpression
    
    Turns the AggregationExpression into a Document within the given AggregationOperationContext.
    
    Specified by:
    
    toDocument in interface AggregationExpression
    
    Returns:
  - asFields
```
protected static List<Field> asFields(String... fieldRefs)
```
  - append
```
protected List<Object> append(Object value)
```
  - append
```
protected Map<String,Object> append(String key,
                                    Object value)
```
  - values
```
protected List<Object> values()
```

Class AccumulatorOperators.StdDevPop

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getMongoMethod

stdDevPopOf

stdDevPopOf

and

and

toDocument

toDocument

asFields

append

append

values