Firebase serialization names

Question

I created an object to send some data to firebase. As an example, I use firebase user example:

public class User {
    public String username;
    public Str         


        

Answer 1

The Firebase SDK uses the annotation it finds for the property whenever it gets or sets its value. That means you need to consider how Firebase gets/sets the value, and annotate each place it looks.

Since you're declaring a getter method, Firebase will use that to get the value of the property. It will use the field for setting the value. So the annotation needs to be on both:

public class Pojo {
   @PropertyName("Guid")
   public String guid;

   @PropertyName("Name")
   public String name;

   @PropertyName("Guid")
   public String getPojoGuid() {
       return guid;
   }

   @PropertyName("Guid")
   public void setPojoGuid(String guid) {
       this.guid = guid;
   }
}

If you'd have getters and setters, the annotation would need to be on those, but not on the fields anymore:

public class Pojo {
   private String guid;
   private String name;

   @PropertyName("Guid")
   public String getPojoGuid() {
       return guid;
   }

   @PropertyName("Guid")
   public void setPojoGuid(String value) {
       guid = value;
   }

   @PropertyName("Name")
   public void setPojoGuid(String guid) {
       this.guid = guid;
   }

   @PropertyName("Name")
   public void setPojoGuid(String value) {
       name = value;
   }
}