Consider the following Java Class.
class Transaction {
@Id
public String id;
public String firstProperty;
public String secondProperty;
}
In Java following code is executed : (mongoTemplate is of type Mongoperations)
Transaction transaction = new Transaction("T1");
transaction.setFirstProperty("first");
Query query = Query.query(Criteria.where("_id").is("T1"));
DBObject dbObject = new BasicDBObject();
mongoTemplate.getConverter().write(transactionInfo, dbObject);
Update update = Update.fromDBObject(dbObject);
mongoTemplate.upsert(query , update , TransactionInfo.class);
Following document is created.
{
_id:123,
firstProperty: "first"
}
If this piece of code is executed later :
Transaction transaction = new Transaction("T1");
transaction.setSecondProperty("second");
Query query = Query.query(Criteria.where("_id").is("T1"));
mongoTemplate.upsert(query , update , TransactionInfo.class);
Expected Document :
{
_id:123,
firstProperty: "first",
secondProperty: "second"
}
Actual Document:
{
_id:123,
secondProperty: "second"
}
From what I read in MongoDB docs I expect the document to be updated with "secondProperty" but it results in the removal of "firstProperty" . I think the document is getting created again, instead of getting updated. Please let me know if I am missing something.
