org.springframework.data.mongodb.core.aggregation

Class AccumulatorOperators.Min

java.lang.Object

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

All Implemented Interfaces:

AggregationExpression

Enclosing class:

AccumulatorOperators

public static class AccumulatorOperators.Min
extends Object

AggregationExpression for $min.

Author:

Christoph Strobl

Method Summary

Modifier and Type	Method and Description
AccumulatorOperators.Min	and(AggregationExpression expression) Creates new AccumulatorOperators.Min with all previously added arguments appending the given one.
AccumulatorOperators.Min	and(String fieldReference) Creates new AccumulatorOperators.Min 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.Min	minOf(AggregationExpression expression) Creates new AccumulatorOperators.Min.
static AccumulatorOperators.Min	minOf(String fieldReference) Creates new AccumulatorOperators.Min.
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()

minOf

public static AccumulatorOperators.Min minOf(String fieldReference)

Creates new AccumulatorOperators.Min.

Parameters:

fieldReference - must not be null.

Returns:

minOf

public static AccumulatorOperators.Min minOf(AggregationExpression expression)

Creates new AccumulatorOperators.Min.

Parameters:

expression - must not be null.

Returns:

and

public AccumulatorOperators.Min and(String fieldReference)

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

Creates new AccumulatorOperators.Min 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()