Is their any way via which I can use mongodb projection feature to fetch selected fields from the document.
Even after searching for whole day on internet not able to find any clue.
Here's the relevant section of the docs concerning repositories. Also the section on querying documents has a brief mention of it.
When using MongoOperations
you can use the Query
instance to restrict the result to certain fields:
Query query = Query.query(Criteria.where("lastname").eq("…"));
// Configure the field spec you want to use for this query
query.fields().include(…).slice(…);
I've filed DATAMONGO-839 to improve the discoverability of this and also polish the JavaDoc of the Query
class.
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