Duplicates are being created in MongoDB

[jayasree.ja...@gmail.com]

Hi,

I have created a DAO class where I'm using @CompoundIndexes to avoid duplicates into my DB but still the entries are being populated. Any idea about how we can avoid it?

Example class:

@Document(collection = "ABC")

@CompoundIndexes({

        @CompoundIndex(def = "{'A.B.x':1, 'A.B.y':1}", name = "compound_index_1"),

@CompoundIndex(def = "{'A.C.k':1, 'A.C.l':1}", name = "compound_index_2")

})

public class XXX{

private A a;

private String dateOfEntry;

private String dateOfUpdate;

}

class A {

private B b;

private C c;

private string status;

}

class B {

private string x;

private string y;

}

class C{

private string k;

private string l;

private string m;

}

[Wan Bachtiar]

Hi,

Note that questions related to the use of MongoDB (i.e. your question) are better sent to mongodb-user group. This group (mongodb-dev) is for discussion for/by/about developers/development/code of MongoDB.

Please see MongoDB: Unique Indexes for information preventing duplicates entry based on unique field(s). 

If you have further questions about duplicates, please post a new discussion on mongodb-user group along with information below:

• MongoDB version.
• Example of MongoDB documents.
• Steps to reproduce the problem. 

Regards,

Wan.

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