Javaの例外の考え方について

interface Data{
    String getValue();
}

class RSData implements Data{
    
    ResultSet rs;

    RSData(ResultSet rs){
        this.rs = rs;
    }
    
    String getValue(){
        try{
            return rs.getString("xxx");
        }catch(SQLException e){
            throw new RuntimeException(e);
        }
    }
}

class XMLData implements Data{
    
    Node node;

    XMLData(Node node){
        this.node = node;
    }
    
    String getValue(){
        return node.getText();
    }
}

class Main{
    public static void main(String[] args){
        Data data = XXXX.getData();
        String value = data.getValue();
    }
}