Partial update using Repository.saveAll method

Not that I can think of at the moment. Are your partial updates relying on any logic? Like only update field A if field B has a value C? Or are they just partially populated objects with with and Id set?

We currently have a:

void updateField(T entity, MetamodelField<T, ?> field, Object value);

which allows you update only the given field if you already have an instance of the entity (with an id) and it sends a single JSON.SET with a path (https://redis.io/docs/latest/commands/json.set/) or HSET for the target field.

I could see an extension of this for the QBE (Query by Example) to do something like:

void updateByExample(T entity, Example<S> example)

and we could create one for bulk by example updates as:

void updateAll(Iterable<Example<S>> entities, config);

This will need some flags in config to determine whether to use HSET or HSETNX for hashes and HEXISTS if there is a need to only set it if it already exists. Similarly for JSON.SET. A potential method:

void updateAll(Iterable<S> entities);

could create the examples on behalf of the users and use sensible defaults for the NX/XX flags

redis / redis-om-spring

Partial update using Repository.saveAll method #473