android - Migrate realm field of type double to new sub-object with values -

i have user object right has bunch of values in it, saved doubles. format of our api json changing include 2 values each field. have created value object (which extends realmobject) , contains 2 values.

so in user object want following

//current way private double balance;  //want migrate private value balance; 

the value object looks this:

private class value extends realmobject {      private integer value;     private string formattedvalue;      //getters/setters } 

my question is, how can express change in realmmigration?

this have far based on this: (change datatype of realm field - java)

schema.get("user")             .addfield("balance_tmp", value.class)             .transform(new realmobjectschema.function() {                 @override                 public void apply(dynamicrealmobject obj) {                     //what goes here? how can access value.class , call setvalue()?                 }             })             .removefield("balance")             .renamefield("balance_tmp", "balance"); 

is possible? or should resigned fact data assigned fields change lost?

something should work:

realmobjectschema valueschema = schema.create("value")         .addfield("value", integer.class)         .addfield("formattedvalue", string.class);  schema.get("user")         .addrealmobjectfield("balance_tmp", valueschema)         .transform(new realmobjectschema.function() {             @override             public void apply(dynamicrealmobject obj) {                 int balance = obj.getint("balance");                 dynamicrealmobject valueobj = obj.getobject("balance_tmp");                 valueobj.setint("value", balance);                 valueobj.setstring("formattedvalue", format(balance));             }         })         .removefield("balance")         .renamefield("balance_tmp", "balance");