java - How to retrieve and remove embedded document spring data mongodb -

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there stuck, how remove embedded document in mongodb. using spring data mongodb criteria, doing following:

// database  "_id" : objectid("55683d51e4b0b6050c5b0db7"),     "_class" : "com.samepinch.domain.metadata.metadata",     "preferencetype" : "shopping",     "subtypes" : [         {             "_id" : objectid("55683d51e4b0b6050c5b0db6"),             "leftvalue" : "veg",             "rightvalue" : "non_veg",             "preferencepoint" : 0         }     ],     "createddate" : isodate("2015-05-29t10:20:01.610z"),     "updateddate" : isodate("2015-05-29t10:20:01.610z")   // query  mongotemplate.updatemulti(new query(),                     new update().pull("subtypes", query.query(criteria.where("subtypes._id").is(new objectid("55683d51e4b0b6050c5b0db6"))),metadata.class);

what doing wrong? in advance!

subtypes in nested objects should first pass in $elemmatch matched first matching array elements of given conditions. update query :

db.updatemulti.update({"subtypes":{"$elemmatch":{"_id":objectid("55683d51e4b0b6050c5b0db6")}}}, {"$pull":{"subtypes":{"_id":objectid("55683d51e4b0b6050c5b0db6")}}})

this query pull exact matching array elements subtypes array .

and of spring elemmatch ( not expertise in spring mongo ) converted query in spring format below :

mongotemplate.updatemulti(new query(  where("subtypes").elemmatch(where("_id").is(ew objectid("55683d51e4b0b6050c5b0db6"))).pull(   pull("subtypes", query.query(criteria.where("_id").is(new objectid("55683d51e4b0b6050c5b0db6"))),metadata.class ));

this above spring query not tested hope convert mongo update query in spring mongo query format.


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