spring data - MongoDB projection exception -


i trying use projection in mongodb using mongorepository , jsonparserexception. below code:

@query(value= "{'regid': ?0, 'data': {$elemmatch: {'$or': [{'samplestep' :?1}, {'samplestep' : {$gt: ?1}, raw: ?2}]}}, 'ts': ?2, 'regid': ?2}")  data findallbyid(objectid regid, string samplestep, boolean flag);

exception message:

 {'regid': ?0, 'data': {$elemmatch: {'$or': [{'samplestep' : "1000000000"}, {'samplestep' : {$gt: "1000000000"}, raw: true}]}}, 'ts': true, 'regid': true}       ^] root cause com.mongodb.util.jsonparseexception:  {'regid': ?0, 'data': {$elemmatch: {'$or': [{'samplestep' : "1000000000"}, {'samplestep' : {$gt: "1000000000"}, raw: true}]}}, 'ts': true, 'regid': true}

can tell me wrong here. in advance.

the error using of ? in values. example, if replace:

{$gt: ?1}

with 

{$gt: 1}

you not have exception.

i think following should removed:

'regid': ?0

probably there no regid==0. here objectid example:

objectid("507f1f77bcf86cd799439011")

to read more objectids please follow link.


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