To a lot of problems with @MappedSuperclass with generics.
We have:
{code:java}
@MappedSuperclass
public class AbstractEntity<ID extends Serializable> {
@Id
@GeneratedValue
protected ID id;
...
}
{code}
And we have:
{code:java}
@Entity
@Table(name = "SomeEntity")
public class SomeEntity extends AbstractEntity<Integer> {
}
{code}
Next, jpa criteria:
{code:java}
public Predicate toPredicate(Root root, CriteriaQuery criteriaQuery, CriteriaBuilder criteriaBuilder) {
{color:red}//Here we have - Serializable, but expected Integer.{color}
root.get("id").getJavaType();
return ...;
}
{code}
If the generic parameter is just type, we have Object at getJavaType(). |
|