Atomic Update

Select the target range with first/multi/upsertOne and explicitly configure document update or aggregation pipeline update.

First select the update range and expression.

text

Document update

java

• inc, set, unset, push, addToSet, pull

• Add Driver update directly: driverUpdate(Bson)

• setOnInsert(...) is used in upsertOne().document().

Single-document upsert

java

Pipeline update

java

nextStage() flushes the current pending $set as a single stage. Driver-native pipeline stages are added directly with stage(Bson).

Auditing / lifecycle

atomicUpdate does not go through the entity save lifecycle.

Since MongoExecutionContext.beforePersist/afterPersist is not called, do not expect updatedAt of atomic updates to be automatically included even if reactive auditing is connected in the Spring adapter; include it explicitly in the update.