哪种方法更适合POJO（字段格式化逻辑）？

Question

I'm working with JSON. So I have following POJO classes Position , Person . Where Person my needed class.

I need to receive formatted values of fields only of Person (I'm using only this class, Position it's class accroding my JSON strucutre)

Where better implement formatting logic in Position or Person ?

1st variant, formatting logic in Position class

public Position {
    private String value;


    public String getFormattedValue() {
        //Value formatting...
        return value;
}

public Person {
    private Position position;
    ..other fields

    public String getFormattedValue() {
        return position.getFormattedValue();
    }
}

//using 
String neededFormattedValue = new Person().getFormattedValue();

2nd variant, formatting logic in Person class

public Position {
    private String value;

    public String getValue() {
        return value;
}

public Person {
    private Position position;
    ..other fields

    public String getFormattedValue() {
        String value = position.getValue()
        //Value formatting...
        return value;
    }
}

//using 
String neededFormattedValue = new Person().getFormattedValue();

Answer 1

I would suggest to have second variant, as you Position class should not have formatting logic. The second one is more loosely coupled.

Answer 2

I have been having problems converting between JSON, POJO and XML.

So it seems best to use the exact name for get / set, albeit the first character - which is always capitalized.

Eg. If the fields use correct formatting, Android Studio usually suggests the methods(functions) names. Where the class contains private String value; , when you begin typing public get... AS should provide you a list. The correct syntax for the get method would be public getValue() ... .

public class abc()
{
  private String value;
  private int some_id_of_a_record;
  private String anotherString;

  public String getValue()
  {...}

  public int getSome_id_of_a_record()
  {...}

  public String getAnotherString()
  {...}

... }