How create Tree object with same map Object (Java)

Question

Hello i have a new problem today i need to construct an object like that with this particular strucural (i have made changes):

{ 
 principalid:
 {
 id:1
  { 
  price1:20,
  price2:30,
  price3:30
  secondaryid:
  { 
  subId:1 
   {
   price1:60,
   price2:80,
   price3:120
    thirdid:
    { 
     subsubId:1 
     {
     price1:60,
     price2:80,
     price3:120
     }
     subsubId:2 {
     price1:60,
     price2:80,
     price3:120
     }
     }}}}

I have my java object named Price with getter and setter

public class Price {

private Double price1 = null;
private Double price2 = null;
private Double price3 = null;
}

To create the first level, i used to declare a new attribute in my Object something like :

    private final Map<String, Price> mapPrice = new HashMap<>();

Where String represents Id but i want use same for subid and subsubId

How can i do to organise my object with multiple sub level ?

Do you have any suggestion or any sample to implement this solutions ?

Thanks

@Lionel_B you shoudl take a look at the "composite" pattern, it seems to fit your needs. — Anthony Raymond, Jan 27 '17 at 13:18
Possible duplicate of [Java tree data-structure?](http://stackoverflow.com/questions/3522454/java-tree-data-structure) — Serg, Jan 27 '17 at 13:19
Hello thanks for you answer, but in example in deal only with string , i need to use some object — Lionel B, Jan 27 '17 at 13:50
As stated before, look at [Composite pattern](https://en.wikipedia.org/wiki/Composite_pattern) to see how to build this sub-composition. `Price -> Price -> Price -> ...` — AxelH, Jan 27 '17 at 13:53
Sure ... [example](https://en.wikipedia.org/wiki/Composite_pattern#Java) — AxelH, Jan 27 '17 at 13:54

score -1 · Accepted Answer · answered Jan 27 '17 at 13:48

-1

Your data seems to be json, so you might want to take a look at JsonObject and it's use.

And/or a look at gson.

Mykong has a short guide.

answered Jan 27 '17 at 13:48

Gunnar

383
4
18

This is just a common notation to represent data structure. Nothing in the question show that this is actually the JSON notation. – AxelH Jan 27 '17 at 13:51
I know how to convert to Json, it's just for represents my idea, i want to know the Java code structure – Lionel B Jan 27 '17 at 13:51

How create Tree object with same map Object (Java)

1 Answers1