Sample class

$sample aggregation stage

Stage description.

$sample randomly selects a specified number of documents from the aggregation pipeline. This stage can be useful for sampling a subset of documents from a larger dataset.

You can include only one $sample stage in an aggregation pipeline.

Example:

Dart code

Sample(10).build()

Equivalent mongoDB aggregation stage:

{
  $sample: {
    size: 10
  }
}

https://docs.mongodb.com/manual/reference/operator/aggregation/sample/

Inheritance

• Object
• AggregationStage
• Sample

Constructors

Sample(int size)

Creates $sample aggregation stage

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

build() → Map<String, Object>

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited