Interface AggregationExpression
- All Superinterfaces:
MongoExpression
- All Known Implementing Classes:
AccumulatorOperators.Avg
,AccumulatorOperators.CovariancePop
,AccumulatorOperators.CovarianceSamp
,AccumulatorOperators.ExpMovingAvg
,AccumulatorOperators.Max
,AccumulatorOperators.Median
,AccumulatorOperators.Min
,AccumulatorOperators.Percentile
,AccumulatorOperators.StdDevPop
,AccumulatorOperators.StdDevSamp
,AccumulatorOperators.Sum
,AggregationSpELExpression
,ArithmeticOperators.Abs
,ArithmeticOperators.ACos
,ArithmeticOperators.ACosh
,ArithmeticOperators.Add
,ArithmeticOperators.ASin
,ArithmeticOperators.ASinh
,ArithmeticOperators.ATan
,ArithmeticOperators.ATan2
,ArithmeticOperators.ATanh
,ArithmeticOperators.Ceil
,ArithmeticOperators.Cos
,ArithmeticOperators.Cosh
,ArithmeticOperators.Derivative
,ArithmeticOperators.Divide
,ArithmeticOperators.Exp
,ArithmeticOperators.Floor
,ArithmeticOperators.Integral
,ArithmeticOperators.Ln
,ArithmeticOperators.Log
,ArithmeticOperators.Log10
,ArithmeticOperators.Mod
,ArithmeticOperators.Multiply
,ArithmeticOperators.Pow
,ArithmeticOperators.Rand
,ArithmeticOperators.Round
,ArithmeticOperators.Sin
,ArithmeticOperators.Sinh
,ArithmeticOperators.Sqrt
,ArithmeticOperators.Subtract
,ArithmeticOperators.Tan
,ArithmeticOperators.Tanh
,ArithmeticOperators.Trunc
,ArrayOperators.ArrayElemAt
,ArrayOperators.ArrayToObject
,ArrayOperators.ConcatArrays
,ArrayOperators.Filter
,ArrayOperators.First
,ArrayOperators.In
,ArrayOperators.IndexOfArray
,ArrayOperators.IsArray
,ArrayOperators.Last
,ArrayOperators.RangeOperator
,ArrayOperators.Reduce
,ArrayOperators.Reduce.PropertyExpression
,ArrayOperators.ReverseArray
,ArrayOperators.Size
,ArrayOperators.Slice
,ArrayOperators.SortArray
,ArrayOperators.Zip
,BooleanOperators.And
,BooleanOperators.Not
,BooleanOperators.Or
,BucketOperationSupport.OperationOutput
,BucketOperationSupport.Output
,BucketOperationSupport.Outputs
,ComparisonOperators.Cmp
,ComparisonOperators.Eq
,ComparisonOperators.Gt
,ComparisonOperators.Gte
,ComparisonOperators.Lt
,ComparisonOperators.Lte
,ComparisonOperators.Ne
,ConditionalOperators.Cond
,ConditionalOperators.IfNull
,ConditionalOperators.Switch
,ConditionalOperators.Switch.CaseOperator
,ConvertOperators.Convert
,ConvertOperators.DegreesToRadians
,ConvertOperators.ToBool
,ConvertOperators.ToDate
,ConvertOperators.ToDecimal
,ConvertOperators.ToDouble
,ConvertOperators.ToInt
,ConvertOperators.ToLong
,ConvertOperators.ToObjectId
,ConvertOperators.ToString
,DataTypeOperators.Type
,DateOperators.DateAdd
,DateOperators.DateDiff
,DateOperators.DateFromParts
,DateOperators.DateFromString
,DateOperators.DateSubtract
,DateOperators.DateToParts
,DateOperators.DateToString
,DateOperators.DateTrunc
,DateOperators.DayOfMonth
,DateOperators.DayOfWeek
,DateOperators.DayOfYear
,DateOperators.Hour
,DateOperators.IsoDateFromParts
,DateOperators.IsoDayOfWeek
,DateOperators.IsoWeek
,DateOperators.IsoWeekYear
,DateOperators.Millisecond
,DateOperators.Minute
,DateOperators.Month
,DateOperators.Second
,DateOperators.TimezonedDateAggregationExpression
,DateOperators.TsIncrement
,DateOperators.TsSecond
,DateOperators.Week
,DateOperators.Year
,DocumentOperators.DenseRank
,DocumentOperators.DocumentNumber
,DocumentOperators.Rank
,DocumentOperators.Shift
,EvaluationOperators.Expr
,EvaluationOperators.LastObservationCarriedForward
,LiteralOperators.Literal
,ObjectOperators.GetField
,ObjectOperators.MergeObjects
,ObjectOperators.ObjectToArray
,ObjectOperators.SetField
,ScriptOperators.Accumulator
,ScriptOperators.Function
,SelectionOperators.Bottom
,SelectionOperators.First
,SelectionOperators.Last
,SelectionOperators.Top
,SetOperators.AllElementsTrue
,SetOperators.AnyElementTrue
,SetOperators.SetDifference
,SetOperators.SetEquals
,SetOperators.SetIntersection
,SetOperators.SetIsSubset
,SetOperators.SetUnion
,StringOperators.Concat
,StringOperators.IndexOfBytes
,StringOperators.IndexOfCP
,StringOperators.LTrim
,StringOperators.RegexFind
,StringOperators.RegexFindAll
,StringOperators.RegexMatch
,StringOperators.ReplaceAll
,StringOperators.ReplaceOne
,StringOperators.RTrim
,StringOperators.Split
,StringOperators.StrCaseCmp
,StringOperators.StrLenBytes
,StringOperators.StrLenCP
,StringOperators.Substr
,StringOperators.SubstrCP
,StringOperators.ToLower
,StringOperators.ToUpper
,StringOperators.Trim
,VariableOperators.Let
,VariableOperators.Map
An
AggregationExpression
can be used with field expressions in aggregation pipeline stages like
project
and group
.
The expressions
toDocument(AggregationOperationContext)
method is called during
the mapping process to obtain the mapped, ready to use representation that can be handed over to the driver as part
of an pipleine stage
.
- Author:
- Thomas Darimont, Oliver Gierke, Christoph Strobl
-
Method Summary
Modifier and TypeMethodDescriptionstatic AggregationExpression
from
(MongoExpression expression) Create anAggregationExpression
out of a givenMongoExpression
to ensure the resultingDocument
is mapped against theAggregationOperationContext
.default org.bson.Document
Obtain the as is (unmapped) representation of theAggregationExpression
.org.bson.Document
toDocument
(AggregationOperationContext context)
-
Method Details
-
from
Create anAggregationExpression
out of a givenMongoExpression
to ensure the resultingDocument
is mapped against theAggregationOperationContext
.
If the given expression is already anAggregationExpression
the very same instance is returned.- Parameters:
expression
- must not be null.- Returns:
- never null.
- Since:
- 3.2
-
toDocument
default org.bson.Document toDocument()Obtain the as is (unmapped) representation of theAggregationExpression
. UsetoDocument(AggregationOperationContext)
with a matchingcontext
to engage domain type mapping including field name resolution.- Specified by:
toDocument
in interfaceMongoExpression
- Returns:
- never null.
- See Also:
-
toDocument
- Parameters:
context
- must not be null.- Returns:
- the MongoDB native (
Document
) form of the expression.
-