CODEWITHSUNDEEP
javajsonmongodb
gonzalomelov
gonzalomelov

Reputation: 981

MongoDB Java Driver

Given some JSON value and a query in MongoDB format, I want to filter the same way that MongoDB does, the json entities I want without going to the MongoDB.

For example, I have:

JSON Value: [{qty: 10}, {qty: 30}, {qty: 50}] Query in MongoDB format: { qty: { $gt: 20 } }

Result: [{qty: 50}]

I want that without going to Mongo database, for example calling some method that recives JSON Value and JSON Query String in Mongo format, inside some JAR.

Thanks!

Upvotes: 0

Views: 134

Answers (2)

Ajay George
Ajay George

Reputation: 11875

I want that without going to Mongo database

Parse JSON using Jackson and create a Query Object and a Collection containing the target objects.

Use a collections framework such as Guava or GS-Collections and filter.

Upvotes: 1

Thomas W
Thomas W

Reputation: 14164

'Jackson' library offers JSON parsing & generation in Java. Once you've parsed, you can filter values/ data structure using Java code to your heart's content.

Java obviously has no direct implementation of Mongo query language.. you can implement Java code yourself as desired.

See:

Upvotes: 0

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