alternative of @formula in jpa

Question

Is there any alternative sollution for @formula which is using in hibernate? I need to use it by jpa, for instance:

@Formula("select count(1) from Market m where m.defaultAirportCode=airportCode")
private Boolean isDefault;

Answer 1

you can use combination of annotations and one method

@Transient
private Boolean isDefault;

@PostLoad
private void setDefault() {
this.isDefault=this.defaultAirportCode.equals(this.airportCode);
}

Answer 2

You can use a database view that includes the formula, and map the Entity to the view.