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android - How to bypass unique ID and retrieve multiple auto generated child

I want to retrieve multiple child with an auto generated child(Estab_url child). Here is my Code. All i can retrieve is one child and its random

Our Database Firebase

final DatabaseReference establishments = database.getReference("establishments");


  establishments.child(s2).child("Estab_url").addChildEventListener(new ChildEventListener() {
            @Override
            public void onChildAdded(DataSnapshot dataSnapshot, String s) {
                if (dataSnapshot.hasChildren()) {
                 //   String value = dataSnapshot.getValue(String.class);
                    String sd = dataSnapshot.getKey();
                    Name.setText(sd);
                }

            }

            @Override
            public void onChildChanged(DataSnapshot dataSnapshot, String s) {

            }

            @Override
            public void onChildRemoved(DataSnapshot dataSnapshot) {

            }

            @Override
            public void onChildMoved(DataSnapshot dataSnapshot, String s) {
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });
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