Creating a custom VersionType

Hibernate ORM
1

Hi all! I need advice, because I didn’t find a way to do it.

We want to implement a custom VersionType in which we are trying to override the Versiontype.next() method. Since we want to bind the version calculation logic to the hashcode of the entity object. There was a question. How can you access the computed object inside the VersionType?

public class HyperVersionType extends AbstractSingleColumnStandardBasicType<Short>
        implements PrimitiveType<Short>, DiscriminatorType<Short>, VersionType<Short>

    @Override
    public Short next(Short current, SharedSessionContractImplementor session) {
        return (short) (current + 1);
    }

    @NotNull
    @Version
    @Type(type = "org.hyperobjects.objcore.model.obj.HyperVersionType")
    @Column(name = "version", nullable = false)
    private short version;

Thanks in advance!

2

computed object

You mean the entity? There is no way to access the entity from these contracts. If you need something like that, I’d recommend you to use a @PrePersist and @PreUpdate listener for doing that.