Package com.mongodb.client.model

Interface ScoreFusionCombination

All Superinterfaces:

Bson

All Known Subinterfaces:

WeightedScoreFusionCombination

@Sealed
public interface ScoreFusionCombination
extends Bson

The way in which the normalized scores produced by the input pipelines of the $scoreFusion stage are combined into the final score. The server rejects specifying both weights and an expression, which is why they are separate factory methods.

Since:

5.10

See Also:

• ScoreFusionOptions.combination(ScoreFusionCombination)

MongoDB documentation

$scoreFusion

Since server release

8.2

Field Summary

Fields inherited from interface org.bson.conversions.Bson

DEFAULT_CODEC_REGISTRY

Method Summary

Static Methods

Modifier and Type	Method	Description
static ScoreFusionCombination	expression(Bson expression)	Returns a ScoreFusionCombination combining the scores using a custom expression.
static WeightedScoreFusionCombination	weighted(Bson weights)	Returns a WeightedScoreFusionCombination combining the scores using per-pipeline weights.

Methods inherited from interface org.bson.conversions.Bson

toBsonDocument, toBsonDocument

Method Details

weighted

static WeightedScoreFusionCombination weighted(Bson weights)

Returns a WeightedScoreFusionCombination combining the scores using per-pipeline weights.

Parameters:

weights - A document mapping pipeline names to non-negative numeric weights. Pipelines not mentioned have the server-default weight 1.

Returns:

The requested WeightedScoreFusionCombination.

expression

static ScoreFusionCombination expression(Bson expression)

Returns a ScoreFusionCombination combining the scores using a custom expression. The normalized, weighted score of each input pipeline is available to the expression as the variable named after the pipeline, e.g., "$$name".

Parameters:

expression - The combination expression.

Returns:

The requested ScoreFusionCombination.