Update multiple fields -Partial update- in MongoDB document

Question

I have a document like below in mongo database and I have corresponding Model class Flight.java with all possible fields that are come in any time as update ?

{
    "flight": {
        "event": "Leg",
        "version": "2",
        "key": {
            "fltNum": "1111",
            "fltOrgDate": "2021-01-12",
            "depSta": "BBB",
            "dupDepStaNum": "0"
        },
        "leg": {
            "stations": {
                "arr": "VVV",
                "dupArrStaNum": "0"
            },
            "times": {
                "STD": "2021-01-12T20:30:00",
                "STA": "2021-01-12T23:21:00",
                "LTD": "2021-01-12T20:30:00",
                "LTA": "2021-01-12T23:05:00",
                "PTA": "2021-01-12T23:05:00"
            },
            "status": {
                "leg": " ",
                "dep": "S",
                "arr": "S"
            }
        }
    }
}

So I will get updates for this document continuously with existing fields or some new fields also. I am not sure which filed will get update.

So How can I update document using java MongoDB or Spring Data MongoDB?

Could you approve the answer if it was helpful?

Gibbs
– Gibbs

2021-01-18 16:52:19 +00:00
Commented Jan 18, 2021 at 16:52 — Gibbs
– Gibbs, Commented Jan 18, 2021 at 16:52

Gibbs · Accepted Answer · 2021-01-15 17:21:20Z

0

Well, you have pojo which has all possible fields.

Every update requires three parts.

Find command to identify the doc to be updated
Doc which specifies what will be updated
Options specifies upsert, multi

You can iterate each fields in pojo and check for not null fields then add it to updateDoc

example update in java

answered Jan 15, 2021 at 17:21

Gibbs

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