[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3124) @Embeddable with int field leads to java.sql.SQLException: Field doesn't have a default value for one table per class hirarchy

[Sebastian Baltes (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3124?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_29558 ] 

Sebastian Baltes commented on HHH-3124:
---------------------------------------

@Column(nullable=true) 
int x;

can be used as a workaround

> @Embeddable with int field leads to java.sql.SQLException: Field doesn't have a default value for one table per class hirarchy
> ------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HHH-3124
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3124
>             Project: Hibernate3
>          Issue Type: Bug
>    Affects Versions: 3.2.5, 3.2.6
>         Environment: Hibernate 3.2.6
> Hibernate Annotations 3.3.0.GA
> Hibernate EntityManager 3.3.1.GA
> MySQL 5.1
>            Reporter: Sebastian Baltes
>         Attachments: log.txt
>
>
> Given the following class hirarchy:
> @Entity class Dummy ...
> @Entity class DummyA extends Dummy ...
> @Entity class DummyB extends Dummy {
>   DummyEmbedded embedded;
> }
> @Embeddable public class DummyEmbedded {
>   int x;
> }
> calling 
>     DummyA d = new DummyA(); 
>     em.persist(d);
> leads to 
> [SERVER] DEBUG [main] - could not insert: [de.neise.gena.model.persistence.DummyA] [insert into gena_test.Dummy (name, DTYPE, id) values (?, 'DummyA', ?)]
> java.sql.SQLException: Field 'embedded_x' doesn't have a default value
> and the generated DDL is
> CREATE TABLE  `dummy` (
>   `DTYPE` varchar(31) NOT NULL,
>   `id` bigint(20) NOT NULL,
>   `embedded_x` int(11) NOT NULL,
>   `name` varchar(255) DEFAULT NULL,
>   PRIMARY KEY (`id`)
> ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
> embedded_x should habe been DEFAULT NULL instead of NOT NULL, as it is the case if I don't use an embedded object:
> @Entity class DummyB extends Dummy {
>   int x;
> }
> works, then the DDL is korrekt:
> CREATE TABLE  `dummy` (
>   `DTYPE` varchar(31) NOT NULL,
>   `id` bigint(20) NOT NULL,
>   `x` int(11) DEFAULT NULL,
>   `name` varchar(255) DEFAULT NULL,
>   PRIMARY KEY (`id`)
> ) ENGINE=InnoDB DEFAULT CHARSET=utf8;

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