Can a JPA entity have a field not mapped to a DB column

Question

Is it possible for a JPA entity to have a field which is not mapped to any column in the data base table. Basically I need to store some additional data on my front end but I do not want to create an extra column in the table for this.

this is a duplicate question. https://stackoverflow.com/questions/4662582/make-hibernate-ignore-class-variables-that-are-not-mapped — yerqueri, Oct 23 '18 at 07:07

score 18 · Answer 1 · answered Oct 23 '18 at 07:03

18

Just mark the field or getter with @javax.persistence.Transient annotation.

The data stored there will not be persisted, nor the ddl generator, if you use any, will pick that one up as an additional column of the table.

answered Oct 23 '18 at 07:03

Maciej Kowalski

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score 3 · Answer 2 · answered Oct 24 '18 at 07:09

3

Marking @Transient annotation solve this problem but it will work after restart host server(application/web).

answered Oct 24 '18 at 07:09

Kumar Aditya

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Can a JPA entity have a field not mapped to a DB column

2 Answers2