Spring Data MongoDB query with multiple optional parameters $in Collection -


i have use case query need find based on 3 optional fields , 1 of them pass in collection.

the "3 optional fields" part solved post spring data mongodb and/or query multiple optional parameters

however, runnig issue $in collection filed.

for example, in following query

{ $and :      [{        $and:          [          {$or : [ { $where: '?0 == null' } , { : ?0 }]},           {$or : [ { $where: '?1 == null' } , { b : ?1 }]},          {$or : [ { $where: '?2 == null' } , { c : ?2 }]}         ]     }] }

in case, field a pass in collection, need find object in mongodb filed a $in collection passed in.

i have tried this

 { $and :          [{            $and:              [              {$or : [ { $where: '?0 == null' } , { : { $in : ?0 }}]},               {$or : [ { $where: '?1 == null' } , { b : ?1 }]},              {$or : [ { $where: '?2 == null' } , { c : ?2 }]}             ]         }]     }

however, got npe when pass in null collection.

you need test collection length, shown here spring-data-mongo - optional query parameters? can rid of top-level $and.

{ $and :         [         {$or : [ { $where: '?0.length == 0' } , { : { $in : ?0 }}]},          {$or : [ { $where: '?1 == null' } , { b : ?1 }]},         {$or : [ { $where: '?2 == null' } , { c : ?2 }]}        ] }

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