ID类型为String的实体错误

Question

I'm having the following entity when i do the persist Im getting dump, I moving to the field string value(this is how the model defined there is ID type string with value such as (vacation,WORK_ACCIDENT...so i cant change it) and the error is

Invalid character string format for type INTEGER.

@Entity
public class LeaveReType {

    @Id
    @GeneratedValue(strategy = GenerationType.TABLE)
    private String id;

I having another entity with ID type string and when i move to it number the persistence working OK ,can i use some annotation for ID to ignore this restriction ?

Exception in thread "main" javax.persistence.RollbackException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.4.1.v20121003-ad44345): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLDataException: Invalid character string format for type INTEGER.
Error Code: 20000
Call: INSERT INTO LESTTYPE (ID, AVAILABLEBALANCE, ENTITLEMENT, NAME, PENDINGITEMS) VALUES (?, ?, ?, ?, ?)
    bind => [5 parameters bound]
Query: InsertObjectQuery(LESTTYPE [id=WORK_ACCIDENT, name=Work Accident, entitlement=n/a, availableBalance=n/a, pendingItems=0 pending items])

I also tried with and i getting the same error

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@TypeConverter(dataType = Long.class, name = "id")
private String id;

Answer 1

If you database type is NUMBER are you want your object type to be String you should use a Converter to convert the type.

ie @TypeConverter(dataType=Long.class)

But really, if you database type is NUMBER you should use a numeric type in Java. You could still have get/set method that take String if you wish. Also using @GeneratedValue on a String type is odd.