How to filter out duplicate values ​​in Hibernate?

Question

Java

There is a table that I need to filter in such a way that the values ​​of one of the columns never repeat.
Looks like I completely forgot how to google, but on the net they always refer to Projections.distinct(), which returns not the entire table, but only the filtered column.
Help me figure it out, or am I configuring this class incorrectly, or should I use something else?

Answer 1

@Entity
@Table(name="values")
class MyEntity {
 ...
 @Column(unique=true)
 private String myValue;

}