How to represent nested data in Firebase class

Question

Taken from the Firebase example, if I have a Dinosaurs facts data structure like this:

{
  "lambeosaurus": {
    "name": "lamby",
    "work": "eat",
    "dimensions": {
      "height" : 2.1,
      "length" : 12.5,
      "weight": 5000
    }
  },
  "stegosaurus": {
    "name": "stego",
    "work": "play",
    "dimensions": {
      "height" : 4,
      "length" : 9,
      "weight" : 2500
    }
  }
}

How can I represent this structure in a Android Class for Firebase to cast from DataSnapshot.getValue(DinosaurFacts.class)?

name, and work are represented as Strings, but how to represent "dimensions" collection in the class?

Also how can I access data values from DataSnapshot about height & weight?

EDIT I can get the individual elements looping through the snapshot, but am trying to find how to represent the data in the class structure.

for(DataSnapshot child : dataSnapshot.getChildren()) {

                Log.d("hz-key:", child.getKey().toString());
                Log.d("hz-val:", child.getValue().toString());
            }

Answer 1

The JavaBean class to represent this structure is:

public static class DinosaurFacts {
    String name;
    String work;
    Dimensions dimensions;

    public String getName() {
        return name;
    }

    public String getWork() {
        return work;
    }

    public Dimensions getDimensions() {
        return dimensions;
    }

    public class Dimensions {
        double height;
        long weight;
        double length;

        public double getHeight() {
            return height;
        }

        public long getWeight() {
            return weight;
        }

        public double getLength() {
            return length;
        }
    }
}

Then you can read a dino with:

DinosaurFacts dino = dinoSnapshot.getValue(DinosaurFacts.class);

And access the dimensions with for example:

dino.getDimensions().getWeight();