How to save object with relation using JAVA in Backendless 4.0?

Question

(SAVING DATA WITH RELATION USING BACKENDLESS 4.0)

I would like to save data with one to one relation. example: -person_table have a relation with adress_table the data is save in person_table and address_table without relation. how can make this? #backendless4.0

Adress newAdress= new Adress();
    newAdress.setAdress("43 Street");
    newAdress.setPersonId(Person);
    Backendless.Persistence.save(newAdress, new AsyncCallback< Adress >() {
        @Override
        public void handleResponse(Adress response) {
        }

        @Override
        public void handleFault(BackendlessFault fault) {
            fault.getMessage();
        }
    });

Please provide a [minimal, verifiable, example](https://stackoverflow.com/help/mcve) of what you have achieved and where the problems arise. — M. le Rutte, Oct 01 '17 at 16:09
i saved the address but the pertsonId Relation is empty in the table — Djason Irvinton Sylvaince, Oct 01 '17 at 16:25

Djason Irvinton Sylvaince · Accepted Answer · 2017-10-01T17:59:29.803

I find the result: for save with relation in backendless 4.0 you need to save the object first and save the relation after.

ref link 1 : ADD RELATION WITH OBJECTS ref link 2 : save object with relation using REST API

Person personObject = // personObject retrieval is out of scope in this example
        Adress objectAdress = // addressObject retrieval is out of scope in this example
        ArrayList< Person > personCollection = new ArrayList< Person >();
        personCollection.add( personObject );
        Backendless.Data.of( Adress.class ).addRelation( objectAdress, "personId:Adress:n", personCollection,
            new AsyncCallback<Integer>()
            {
                @Override
                public void handleResponse( Integer response )
                {
                    progressDialog.dismiss();
                    Log.i( "MYAPP", "related objects have been added");
                }

                @Override
                public void handleFault( BackendlessFault fault )
                {

                }
            } );

How to save object with relation using JAVA in Backendless 4.0?

1 Answers1