[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3579) Support for PostgreSQL UUID data type

[Steve Ebersole (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=37447#action_37447 ] 

Steve Ebersole commented on HHH-3579:
-------------------------------------

I just forgot the binding change.  That I can accept.  

The other, not so much.  The intention though is that *your* code can do this:
{code}
Configuration cfg = ...;
cfg.registerTypeOverride(
        /*
         * Create a new PostgresUUIDType instance in order to register it as the default mapping for java.util.UUID.
         *
         * The other option is to manually specify to use this type for all UUID fields.
         */
        new org.hibernate.type.PostgresUUIDType() {
            protected boolean registerUnderJavaType() {
                return true;
            }
        }
);
{code}

> Support for PostgreSQL UUID data type
> -------------------------------------
>
>                 Key: HHH-3579
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3579
>             Project: Hibernate Core
>          Issue Type: New Feature
>          Components: core
>    Affects Versions: 3.3.1
>            Reporter: Olivier Van Acker
>            Assignee: Steve Ebersole
>             Fix For: 3.6
>
>         Attachments: patch_HH_3579_Hibernate.txt, patch_HH_3579_NullableType.txt, patch_HH_3579_PostgresSQLDialect.txt, patch_HH_3579_TypeFactory.txt, patch_HH_3579_UuidType.txt, postgresuuidType20100613.patch
>
>          Time Spent: 6.45h
>  Remaining Estimate: 0h
>
> PostgreSQL has since version 8.3 UUID as data type nativly supported in the database. 
> The only way to get this to work in Hibernate is to add <column name="id" sql-type="uuid"/> to your mappings file (or @columnDefinition via annotations)
> and create your own custom usertype (e.g. public class UUIDUserType implements UserType, Serializable {..} ) and map this to java.util.UUID 
> worth mentioning is that java.util.UUID is only introduced in java 1.5 so there might be a backwards compatibility problem
>  

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