Aggregation class
Message describing an aggregation.
The message includes the aggregation type, parameters, and the field on which to perform the aggregation.
Constructors
- Aggregation({AggregationCount? count, String? field, AggregationFrequency? frequency, AggregationHistogram? histogram, AggregationSum? sum})
- Aggregation.fromJson(Map json_)
Properties
- count ↔ AggregationCount?
-
Count the number of matching objects.
getter/setter pair
- field ↔ String?
-
The name of the field on which to aggregate.
getter/setter pair
- frequency ↔ AggregationCount?
-
Creates a frequency distribution of all field values.
getter/setter pair
- hashCode → int
-
The hash code for this object.
no setterinherited
- histogram ↔ AggregationHistogram?
-
Creates a bucketed histogram of field values.
getter/setter pair
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- sum ↔ AggregationCount?
-
Sum over a numeric field.
getter/setter pair
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toJson(
) → Map< String, dynamic> -
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited