Java Hibernate用Varchar（255）创建数据库表，如何增加到Varchar（1000）？

当Java Hibernate自动创建表时，我想将255增加到1000，但是该怎么做呢？

可能需要对其进行更改的部分代码：

@Entity
public class Work implements Serializable {

    @Id
    @GeneratedValue

    private long workNumber;
    private int fromYear;
    private int tillYear;
    private String name;
    private String profession;
    private String description;

    @ManyToOne
    private User user;

    public Work() {
    }

    public Work(long workNumber, int fromYear, int tillYear, String name, String profession, String description) {
        this.setWorkNumber(workNumber);
        this.setFromYear(fromYear);
        this.setTillYear(tillYear);
        this.setName(name);
        this.setProfession(profession);
        this.setDescription(description);
    }