Hibernate: How to specify @ColumnDefault for Column of type enum

aksh1618 :

I have an enum defined as follows:

public enum TRAFFIC_SOURCE {
    IP, CLIENT_ID, MOBILE
}

And in my repository:

@Column(name = "SOURCE")
@NotNull
@Enumerated(EnumType.STRING)
private TRAFFIC_SOURCE source;

Now I want to specify default value for the column. I tried two things, getting errors in both cases:

@ColumnDefault(TRAFFIC_SOURCE.IP)
// Error:(26, 43) java: incompatible types: com.myproj.enums.TRAFFIC_SOURCE cannot be converted to java.lang.String

@ColumnDefault(TRAFFIC_SOURCE.IP.name())
// Error:(26, 51) java: element value must be a constant expression

forcing me to use

@ColumnDefault("IP")

Is there a way to use Enum variable as default?

Simon Martinelli :

Because the @ColumnDefault only takes a String as argument and the value in an annotation must be a constant, the only possibility is to use

@ColumnDefault("IP")

If you are not forced to have the default value on the table column and always insert data with JPA then you could initialize the field as Kapcash said:

private TRAFFIC_SOURCE source = TRAFFIC_SOURCE.IP;