Nitrite/Java: Is there a way to filter based on a non-unique field matching itself in 2 or more records?

[timmolter]

Say I have:

a=1, b=2, c=3
a=1, b=22, c=33
a=111, b=222, c=333

How can I get a Cursor that returns the first two entries (because their values for a are equal)?

[anidotnet]

Does not the below query returning expected result?

Cursor cursor = collection.find(eq("a", 1));

[timmolter]

No, because I don't know beforehand that a=1, only that a may be equal in two or more entries.

[anidotnet]

There is no in-built filter operator to do that. You can implement your own Filter and use that.