为什么 hibernate 在我放置 transient 标签时会给我这个错误？

Question

I am trying to fix the vulnerabilities that Kiuwan is indicating to me.

The problem is that one of them is adding the Transient type to a Date type variable, when I do it it gives me the following error.

Caused by: org.hibernate.AnnotationException: com.pack.keys.MyClassKey has no persistent id property: com.pack.logic.MyClass.id

If i dont put transient in Date dont show the error and my project compile.

MyClass

@Table(name = "tablename")
@AllArgsConstructor
@NoArgsConstructor
@Data
public class MyClass{

    @EmbeddedId
    private MyClassKey id;

    private String string1;

    //Many String more...

MyClassKey

@Embeddable
@AllArgsConstructor
@NoArgsConstructor
@Data
public class MyClassKey implements Serializable {

    private static final long serialVersionUID = 1L;

    private transient String string1;

    private transient String string2;

    private transient String string3;

    @Temporal(TemporalType.TIMESTAMP)
    private transient Date myDate;
}

Thanks.

Answer 1

Because transient is excluding attributes from Hibernate. It has the same effect as adding @Transient annotation:

https://javaee.github.io/javaee-spec/javadocs/javax/persistence/Transient.html