Why List giving Error in Hibernate?

Question

In my Java Application creating Value Object(Java Bean) in that have one field

@Entity
@Table(name="EC_TIMETABLE")
    public class TimetableVO
{
----//@id and some other column and variables
----

private List<WeekdayType> repeatDays;//Their is No column in Database
------
------//setter and getter method
}

Hear WeekdayType is Enum class

public static enum WeekdayType {
    MONDAY(Calendar.MONDAY), TUESDAY(Calendar.TUESDAY), WEDNESDAY(
            Calendar.WEDNESDAY), THURSDAY(Calendar.THURSDAY), FRIDAY(
            Calendar.FRIDAY), SATURDAY(Calendar.SATURDAY), SUNDAY(
            Calendar.SUNDAY);

    private int day;

    private WeekdayType(int day) {
        this.day = day;
    }

I'm using TimetableVO getRepeatedDays() another class.

When i'm Start the Server i got error

org.hibernate.MappingException: Could not determine type for: java.util.List, at table: EC_TIMETABLE, for columns: [org.hibernate.mapping.Column(repeatDays)]

So is their any Column required in Database or Syntax Problem ..... Thank in advance..

Rahul · Accepted Answer · 2012-12-10T09:08:37.633

1

No, you need not have a column in database for this field if you do not want to.

You can mark it as transient by @Transient annotation if you do not want to make it persistent.

@Transient
private List<WeekdayType> repeatDays;

edited Dec 10 '12 at 09:08

answered Dec 10 '12 at 09:03

Rahul

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score 0 · Answer 2 · edited May 23 '17 at 12:03

0

Marking the collection as transient will instruct Hibernate that this is not a persisted item. I think something like this is more in line with what you require.

edited May 23 '17 at 12:03

Community

1
1

answered Dec 10 '12 at 09:06

Sean A

31
3

score 0 · Answer 3 · answered Dec 10 '12 at 09:19

0

JPA's @Transient annotation is used to indicate that a field is not to be persisted in the database, i.e. their semantics are different.

Now the solution is ...

@Transient
private List<WeekdayType> repeatDays;

answered Dec 10 '12 at 09:19

Java Developer

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Why List giving Error in Hibernate?

3 Answers3