XStream parser empty tag for null values

Question

I'm using XStream parser. I wants to get an empty tag in place of null values for a variable. How do I achieve this?

Example:

class Person{
    private String name;
    private String age;
}

Person person = new Person("Joe", null);

I'm getting this,

<Person>
    <name>Joe</name>
</Person>

I need this,

<Person>
    <name>Joe</name>
    <age></age>
</Person>

Try to set empty string.

Saulius Next
– Saulius Next

2017-01-05 15:23:58 +00:00
Commented Jan 5, 2017 at 15:23 — Saulius Next
– Saulius Next, Commented Jan 5, 2017 at 15:23

Community · Accepted Answer · 2017-05-23 10:29:21Z

0

If it only concerns strings, initialise them with "", not with null.

So instead of:

Person person = new Person("Joe", null);

Try:

Person person = new Person("Joe", "");

Also, make sure to take a look at: XStream serialize null values

edited May 23, 2017 at 10:29

CommunityBot

11 silver badge

answered Jan 5, 2017 at 15:25

VinKel

1467 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Venkat Prasanna Over a year ago

If its two fields then its ok. I have 12 classes which has around 30 fields in each class aprox. I can't set to each variable. Is there any configuration for that whichever variable is null it should set an empty string like that?

VinKel Over a year ago

Corry, couldn't really find/think of any other way... Maybe this Correct way to represent null XML elements or this XML serialization, hide null values might help provide any help?

VinKel Over a year ago

Actually, what Saulius Next commented on your question seems to work, but that's the same solution as I have provided, but which looks neater. How about providing such default values in the getters and setters? Could you extend a bit on what your situation is?

Collectives™ on Stack Overflow

XStream parser empty tag for null values

1 Answer 1

3 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related