org.springframework.data.mongodb.core.aggregation

Class AccumulatorOperators.Avg

java.lang.Object

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

All Implemented Interfaces:

AggregationExpression

Enclosing class:

AccumulatorOperators

public static class AccumulatorOperators.Avg
extends Object

AggregationExpression for $avg.

Author:

Christoph Strobl

Method Summary

Modifier and Type	Method and Description
AccumulatorOperators.Avg	and(AggregationExpression expression) Creates new AccumulatorOperators.Avg with all previously added arguments appending the given one.
AccumulatorOperators.Avg	and(String fieldReference) Creates new AccumulatorOperators.Avg 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)
static AccumulatorOperators.Avg	avgOf(AggregationExpression expression) Creates new AccumulatorOperators.Avg.
static AccumulatorOperators.Avg	avgOf(String fieldReference) Creates new AccumulatorOperators.Avg.
protected String	getMongoMethod()
com.mongodb.DBObject	toDbObject(AggregationOperationContext context) Turns the AggregationExpression into a DBObject within the given AggregationOperationContext.
com.mongodb.DBObject	toDbObject(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()

avgOf

public static AccumulatorOperators.Avg avgOf(String fieldReference)

Creates new AccumulatorOperators.Avg.

Parameters:

fieldReference - must not be null.

Returns:

avgOf

public static AccumulatorOperators.Avg avgOf(AggregationExpression expression)

Creates new AccumulatorOperators.Avg.

Parameters:

expression - must not be null.

Returns:

and

public AccumulatorOperators.Avg and(String fieldReference)

Creates new AccumulatorOperators.Avg 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.Avg and(AggregationExpression expression)

Creates new AccumulatorOperators.Avg with all previously added arguments appending the given one.
NOTE: Only possible in $project stage.

Parameters:

expression - must not be null.

Returns:

toDbObject

public com.mongodb.DBObject toDbObject(Object value,
                                       AggregationOperationContext context)

toDbObject

public com.mongodb.DBObject toDbObject(AggregationOperationContext context)

Description copied from interface: AggregationExpression

Turns the AggregationExpression into a DBObject within the given AggregationOperationContext.

Specified by:

toDbObject 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()