PATCH java object with non-null values

Asked Nov 23 '16 at 05:21

Active Nov 23 '16 at 05:21

Viewed 198 times

I guess I could write my own version of this, but I wonder if something like this already exists in Java or a well known util. Suppose I have a class

public class User {
   private String name;
   private String number;
}

and I have the following

User currentUser = new User();
currentUser.setName("Bob Smith");
currentUser.setNumber("5555555555");
User updatedUser = new User();
updatedUser.setNumber("4444444444");

I want to be able to call something like:

currrentUser.patch(updatedUser);

and end up with:

currentUser.getNumber() == "444444444";
currentUser.getName() == "Bob Smith";

So basically I want currentUser to take all the non-null values of updatedUser. In the real world User has many more members, and might even extend another class.

asked Nov 23 '16 at 05:21

Leo

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Do you have any code so far? – Herb Nov 23 '16 at 05:25
1

http://stackoverflow.com/questions/1301697/helper-in-order-to-copy-non-null-properties-from-object-to-another-java – Vasu Nov 23 '16 at 05:27
@javaguy this answer seems to deal with JavaBean which this is not – Leo Nov 23 '16 at 20:05
@HerbWolfe I don't have any code so far. For obvious reasons would prefer to not have to check field by field. – Leo Nov 23 '16 at 23:21

PATCH java object with non-null values

0 Answers0